Quotient Rule - GRE Quantitative Reasoning
Card 0 of 28
Find
:

Find :
Write the quotient rule.

For the function
,
and
,
and
.
Substitute and solve for the derivative.


Reduce the first term.

Write the quotient rule.
For the function ,
and
,
and
.
Substitute and solve for the derivative.
Reduce the first term.
Compare your answer with the correct one above
Find the following derivative:

Given


Find the following derivative:
Given
This question asks us to find the derivative of a quotient. Use the quotient rule:

Start by finding
and
.




So we get:

Whew, let's simplify




This question asks us to find the derivative of a quotient. Use the quotient rule:
Start by finding and
.
So we get:
Whew, let's simplify
Compare your answer with the correct one above
Find derivative
.


Find derivative .
This question yields to application of the quotient rule:

So find
and
to start:






So our answer is:

This question yields to application of the quotient rule:
So find and
to start:
So our answer is:
Compare your answer with the correct one above
Find the derivative of:
.
Find the derivative of: .
Step 1: We need to define the quotient rule. The quotient rule says:
, where
is the derivative of
and
is the derivative of 
Step 2: We need to review how to take derivatives of different kinds of terms. When we are taking the derivative of terms in a polynomial, we need to follow these rules:
Rule 1: For any term with an exponent, the derivative of that term says: Drop the exponent and multiply it to the coefficient of that term. The new exponent of the derivative is
lower than the previous exponent.
Example: 
Rule 2: For any term in the form
, the derivative of that term is just
, the coefficient of that term.
Ecample: 
Rule 3: The derivative of any constant is always 
Step 3: Find
and
:


Step 4: Plug in all equations into the quotient rule:

Step 5: Simplify the fraction in step 4:

Step 6: Combine terms in the numerator in step 5:
.
The derivative of
is 
Step 1: We need to define the quotient rule. The quotient rule says: , where
is the derivative of
and
is the derivative of
Step 2: We need to review how to take derivatives of different kinds of terms. When we are taking the derivative of terms in a polynomial, we need to follow these rules:
Rule 1: For any term with an exponent, the derivative of that term says: Drop the exponent and multiply it to the coefficient of that term. The new exponent of the derivative is lower than the previous exponent.
Example:
Rule 2: For any term in the form , the derivative of that term is just
, the coefficient of that term.
Ecample:
Rule 3: The derivative of any constant is always
Step 3: Find and
:
Step 4: Plug in all equations into the quotient rule:
Step 5: Simplify the fraction in step 4:
Step 6: Combine terms in the numerator in step 5:
.
The derivative of is
Compare your answer with the correct one above
Find the derivative of: 
Find the derivative of:
Step 1: Define
.

Step 2: Find
.

Step 3: Plug in the functions/values into the formula for quotient rule: ![\frac {f'(x)\cdot g(x)-f(x)\cdot g'(x)}{[g(x)]^2}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724374/gif.latex)

The derivative of the expression is 
Step 1: Define .
Step 2: Find .
Step 3: Plug in the functions/values into the formula for quotient rule:
The derivative of the expression is
Compare your answer with the correct one above
Find the second derivative of: 
Find the second derivative of:
Finding the First Derivative:
Step 1: Define 

Step 2: Find 

Step 3: Plug in all equations into the quotient rule formula: 
![\frac {(3x^2-2)(x^5+4x^2)-[(5x^4+8x)(x^3-2x)]}{[(x^5+4x^2)]^2}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724720/gif.latex)
Step 4: Simplify the fraction in step 3:
![\frac {3x^7+12x^4-2x^5-8x^2-[5x^7-10x^5+8x^4-16x^2]}{x^{10}+8x^7+16x^4}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724721/gif.latex)


Step 5: Factor an
out from the numerator and denominator. Simplify the fraction..

We have found the first derivative..
Finding Second Derivative:
Step 6: Find
from the first derivative function

Step 7: Find 

Step 8: Plug in the expressions into the quotient rule formula: 
![\frac {(-10x^4+24x^2+8x)(x^8+8x^5+16x^2)-[(8x^7+40x^4+32x)(-2x^5+8x^3+4x^2+8)]}{[(x^8+8x^6+16x^2)]^2}](//cdn-s3.varsitytutors.com/uploads/formula_image/image/1133069/gif.latex)
Step 9: Simplify:
![\frac {-10x^{12}-80x^9-160x^6+24x^{10}+192x^7+384x^4-...-64x^6-64x^{10}-...-256x}{[(x^8+8x^6+16x^2)]^2}](//cdn-s3.varsitytutors.com/uploads/formula_image/image/1133070/gif.latex)
I put "..." because the numerator is very long. I don't want to write all the terms...
Step 10: Combine like terms:

Step 11: Factor out
and simplify:
Final Answer:
.
This is the second derivative.
The answer is None of the Above. The second derivative is not in the answers...
Finding the First Derivative:
Step 1: Define
Step 2: Find
Step 3: Plug in all equations into the quotient rule formula:
Step 4: Simplify the fraction in step 3:
Step 5: Factor an out from the numerator and denominator. Simplify the fraction..
We have found the first derivative..
Finding Second Derivative:
Step 6: Find from the first derivative function
Step 7: Find
Step 8: Plug in the expressions into the quotient rule formula:
Step 9: Simplify:
I put "..." because the numerator is very long. I don't want to write all the terms...
Step 10: Combine like terms:
Step 11: Factor out and simplify:
Final Answer: .
This is the second derivative.
The answer is None of the Above. The second derivative is not in the answers...
Compare your answer with the correct one above
Find derivative
.


Find derivative .
This question yields to application of the quotient rule:

So find
and
to start:






So our answer is:

This question yields to application of the quotient rule:
So find and
to start:
So our answer is:
Compare your answer with the correct one above
Find
:

Find :
Write the quotient rule.

For the function
,
and
,
and
.
Substitute and solve for the derivative.


Reduce the first term.

Write the quotient rule.
For the function ,
and
,
and
.
Substitute and solve for the derivative.
Reduce the first term.
Compare your answer with the correct one above
Find the following derivative:

Given


Find the following derivative:
Given
This question asks us to find the derivative of a quotient. Use the quotient rule:

Start by finding
and
.




So we get:

Whew, let's simplify




This question asks us to find the derivative of a quotient. Use the quotient rule:
Start by finding and
.
So we get:
Whew, let's simplify
Compare your answer with the correct one above
Find derivative
.


Find derivative .
This question yields to application of the quotient rule:

So find
and
to start:






So our answer is:

This question yields to application of the quotient rule:
So find and
to start:
So our answer is:
Compare your answer with the correct one above
Find the derivative of:
.
Find the derivative of: .
Step 1: We need to define the quotient rule. The quotient rule says:
, where
is the derivative of
and
is the derivative of 
Step 2: We need to review how to take derivatives of different kinds of terms. When we are taking the derivative of terms in a polynomial, we need to follow these rules:
Rule 1: For any term with an exponent, the derivative of that term says: Drop the exponent and multiply it to the coefficient of that term. The new exponent of the derivative is
lower than the previous exponent.
Example: 
Rule 2: For any term in the form
, the derivative of that term is just
, the coefficient of that term.
Ecample: 
Rule 3: The derivative of any constant is always 
Step 3: Find
and
:


Step 4: Plug in all equations into the quotient rule:

Step 5: Simplify the fraction in step 4:

Step 6: Combine terms in the numerator in step 5:
.
The derivative of
is 
Step 1: We need to define the quotient rule. The quotient rule says: , where
is the derivative of
and
is the derivative of
Step 2: We need to review how to take derivatives of different kinds of terms. When we are taking the derivative of terms in a polynomial, we need to follow these rules:
Rule 1: For any term with an exponent, the derivative of that term says: Drop the exponent and multiply it to the coefficient of that term. The new exponent of the derivative is lower than the previous exponent.
Example:
Rule 2: For any term in the form , the derivative of that term is just
, the coefficient of that term.
Ecample:
Rule 3: The derivative of any constant is always
Step 3: Find and
:
Step 4: Plug in all equations into the quotient rule:
Step 5: Simplify the fraction in step 4:
Step 6: Combine terms in the numerator in step 5:
.
The derivative of is
Compare your answer with the correct one above
Find the derivative of: 
Find the derivative of:
Step 1: Define
.

Step 2: Find
.

Step 3: Plug in the functions/values into the formula for quotient rule: ![\frac {f'(x)\cdot g(x)-f(x)\cdot g'(x)}{[g(x)]^2}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724374/gif.latex)

The derivative of the expression is 
Step 1: Define .
Step 2: Find .
Step 3: Plug in the functions/values into the formula for quotient rule:
The derivative of the expression is
Compare your answer with the correct one above
Find the second derivative of: 
Find the second derivative of:
Finding the First Derivative:
Step 1: Define 

Step 2: Find 

Step 3: Plug in all equations into the quotient rule formula: 
![\frac {(3x^2-2)(x^5+4x^2)-[(5x^4+8x)(x^3-2x)]}{[(x^5+4x^2)]^2}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724720/gif.latex)
Step 4: Simplify the fraction in step 3:
![\frac {3x^7+12x^4-2x^5-8x^2-[5x^7-10x^5+8x^4-16x^2]}{x^{10}+8x^7+16x^4}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724721/gif.latex)


Step 5: Factor an
out from the numerator and denominator. Simplify the fraction..

We have found the first derivative..
Finding Second Derivative:
Step 6: Find
from the first derivative function

Step 7: Find 

Step 8: Plug in the expressions into the quotient rule formula: 
![\frac {(-10x^4+24x^2+8x)(x^8+8x^5+16x^2)-[(8x^7+40x^4+32x)(-2x^5+8x^3+4x^2+8)]}{[(x^8+8x^6+16x^2)]^2}](//cdn-s3.varsitytutors.com/uploads/formula_image/image/1133069/gif.latex)
Step 9: Simplify:
![\frac {-10x^{12}-80x^9-160x^6+24x^{10}+192x^7+384x^4-...-64x^6-64x^{10}-...-256x}{[(x^8+8x^6+16x^2)]^2}](//cdn-s3.varsitytutors.com/uploads/formula_image/image/1133070/gif.latex)
I put "..." because the numerator is very long. I don't want to write all the terms...
Step 10: Combine like terms:

Step 11: Factor out
and simplify:
Final Answer:
.
This is the second derivative.
The answer is None of the Above. The second derivative is not in the answers...
Finding the First Derivative:
Step 1: Define
Step 2: Find
Step 3: Plug in all equations into the quotient rule formula:
Step 4: Simplify the fraction in step 3:
Step 5: Factor an out from the numerator and denominator. Simplify the fraction..
We have found the first derivative..
Finding Second Derivative:
Step 6: Find from the first derivative function
Step 7: Find
Step 8: Plug in the expressions into the quotient rule formula:
Step 9: Simplify:
I put "..." because the numerator is very long. I don't want to write all the terms...
Step 10: Combine like terms:
Step 11: Factor out and simplify:
Final Answer: .
This is the second derivative.
The answer is None of the Above. The second derivative is not in the answers...
Compare your answer with the correct one above
Find derivative
.


Find derivative .
This question yields to application of the quotient rule:

So find
and
to start:






So our answer is:

This question yields to application of the quotient rule:
So find and
to start:
So our answer is:
Compare your answer with the correct one above
Find
:

Find :
Write the quotient rule.

For the function
,
and
,
and
.
Substitute and solve for the derivative.


Reduce the first term.

Write the quotient rule.
For the function ,
and
,
and
.
Substitute and solve for the derivative.
Reduce the first term.
Compare your answer with the correct one above
Find the following derivative:

Given


Find the following derivative:
Given
This question asks us to find the derivative of a quotient. Use the quotient rule:

Start by finding
and
.




So we get:

Whew, let's simplify




This question asks us to find the derivative of a quotient. Use the quotient rule:
Start by finding and
.
So we get:
Whew, let's simplify
Compare your answer with the correct one above
Find derivative
.


Find derivative .
This question yields to application of the quotient rule:

So find
and
to start:






So our answer is:

This question yields to application of the quotient rule:
So find and
to start:
So our answer is:
Compare your answer with the correct one above
Find the derivative of:
.
Find the derivative of: .
Step 1: We need to define the quotient rule. The quotient rule says:
, where
is the derivative of
and
is the derivative of 
Step 2: We need to review how to take derivatives of different kinds of terms. When we are taking the derivative of terms in a polynomial, we need to follow these rules:
Rule 1: For any term with an exponent, the derivative of that term says: Drop the exponent and multiply it to the coefficient of that term. The new exponent of the derivative is
lower than the previous exponent.
Example: 
Rule 2: For any term in the form
, the derivative of that term is just
, the coefficient of that term.
Ecample: 
Rule 3: The derivative of any constant is always 
Step 3: Find
and
:


Step 4: Plug in all equations into the quotient rule:

Step 5: Simplify the fraction in step 4:

Step 6: Combine terms in the numerator in step 5:
.
The derivative of
is 
Step 1: We need to define the quotient rule. The quotient rule says: , where
is the derivative of
and
is the derivative of
Step 2: We need to review how to take derivatives of different kinds of terms. When we are taking the derivative of terms in a polynomial, we need to follow these rules:
Rule 1: For any term with an exponent, the derivative of that term says: Drop the exponent and multiply it to the coefficient of that term. The new exponent of the derivative is lower than the previous exponent.
Example:
Rule 2: For any term in the form , the derivative of that term is just
, the coefficient of that term.
Ecample:
Rule 3: The derivative of any constant is always
Step 3: Find and
:
Step 4: Plug in all equations into the quotient rule:
Step 5: Simplify the fraction in step 4:
Step 6: Combine terms in the numerator in step 5:
.
The derivative of is
Compare your answer with the correct one above
Find the derivative of: 
Find the derivative of:
Step 1: Define
.

Step 2: Find
.

Step 3: Plug in the functions/values into the formula for quotient rule: ![\frac {f'(x)\cdot g(x)-f(x)\cdot g'(x)}{[g(x)]^2}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724374/gif.latex)

The derivative of the expression is 
Step 1: Define .
Step 2: Find .
Step 3: Plug in the functions/values into the formula for quotient rule:
The derivative of the expression is
Compare your answer with the correct one above
Find the second derivative of: 
Find the second derivative of:
Finding the First Derivative:
Step 1: Define 

Step 2: Find 

Step 3: Plug in all equations into the quotient rule formula: 
![\frac {(3x^2-2)(x^5+4x^2)-[(5x^4+8x)(x^3-2x)]}{[(x^5+4x^2)]^2}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724720/gif.latex)
Step 4: Simplify the fraction in step 3:
![\frac {3x^7+12x^4-2x^5-8x^2-[5x^7-10x^5+8x^4-16x^2]}{x^{10}+8x^7+16x^4}](https://vt-vtwa-assets.varsitytutors.com/vt-vtwa/uploads/formula_image/image/724721/gif.latex)


Step 5: Factor an
out from the numerator and denominator. Simplify the fraction..

We have found the first derivative..
Finding Second Derivative:
Step 6: Find
from the first derivative function

Step 7: Find 

Step 8: Plug in the expressions into the quotient rule formula: 
![\frac {(-10x^4+24x^2+8x)(x^8+8x^5+16x^2)-[(8x^7+40x^4+32x)(-2x^5+8x^3+4x^2+8)]}{[(x^8+8x^6+16x^2)]^2}](//cdn-s3.varsitytutors.com/uploads/formula_image/image/1133069/gif.latex)
Step 9: Simplify:
![\frac {-10x^{12}-80x^9-160x^6+24x^{10}+192x^7+384x^4-...-64x^6-64x^{10}-...-256x}{[(x^8+8x^6+16x^2)]^2}](//cdn-s3.varsitytutors.com/uploads/formula_image/image/1133070/gif.latex)
I put "..." because the numerator is very long. I don't want to write all the terms...
Step 10: Combine like terms:

Step 11: Factor out
and simplify:
Final Answer:
.
This is the second derivative.
The answer is None of the Above. The second derivative is not in the answers...
Finding the First Derivative:
Step 1: Define
Step 2: Find
Step 3: Plug in all equations into the quotient rule formula:
Step 4: Simplify the fraction in step 3:
Step 5: Factor an out from the numerator and denominator. Simplify the fraction..
We have found the first derivative..
Finding Second Derivative:
Step 6: Find from the first derivative function
Step 7: Find
Step 8: Plug in the expressions into the quotient rule formula:
Step 9: Simplify:
I put "..." because the numerator is very long. I don't want to write all the terms...
Step 10: Combine like terms:
Step 11: Factor out and simplify:
Final Answer: .
This is the second derivative.
The answer is None of the Above. The second derivative is not in the answers...
Compare your answer with the correct one above