All Calculus 1 Resources
Example Questions
Example Question #201 : Writing Equations
Identify the inner and the outer functions of the following equation (let be the outer equation and be the inner equation:
Cannot be determined.
The first section of the equation to be resolved (in this case 2x^3+5) is the innermost function and the second section to solve is the outer function.
So:
becuase g(x) must be performed first before plugging it into f(x).
Example Question #202 : Writing Equations
Identify the inner and the outer functions of the following equation (let be the outer equation and be the inner equation:
Cannot be determined.
The first section of the equation to be resolved (in this case pi * x) is the innermost function and the second section to solve is the outer function.
So:
becuase g(x) must be performed first before plugging it into f(x).
Example Question #11 : Other Writing Equations
Derive the equation for the function of the .
None of these
By the quotient rule, the derivative of
The derivative of sin is cos and the derivative of cos is -sin. Thus the derivative of cot(x) is
By the trigonometric identities this is equal to .
Example Question #11 : How To Write Equations
Suppose Charlie deposits per month into an account that contains a starting balance of .
Which of the following is a correct initial condition that when coupled with the differential equation from the previous question, will yield a specific solution to the scenario described above?
Here we are looking for an initial condition that describes the balance of the account at a specific time. We are given the information that the account starts with initially. So at time years, we know that the amount of money in the account is . Therefore, we can write
Example Question #204 : Writing Equations
Suppose Charlie deposits per month into an account that contains a starting balance of .
Which of the following is a differential equation that best models the amount of money, , in the account after years?
Here we are writing a differential equation in the units of dollars per year. This means that we need to reconcile our units to get the amount deposited each year. ,
so the yearly rate of change of money in the account,
.
The starting balance is our initial condition and does not tell us about the change in money in the account, so is not included in our differential equation.
Example Question #2285 : Calculus
Find the implicit derivative of at the point .
Use implicit differentiation to find of which means to take the derivative of each term in the function with its respective part.
It is simpfied to
.
It is then further simplified to
,
then to
,
then to
.
Plugging in into the equation gives the value of .
Example Question #2286 : Calculus
If and , then what is ?
First we need to find , which is .
Then we find , which equals to
.
We used the power rule and the product rule to find the derivatives.
Power Rule:
Product Rule:
Example Question #2287 : Calculus
, find .
Our starting function is in order to create an easier function we will want to take the natural log of both sides. Taking the natural log will bring the exponet infront creating a product for which we can more easily differentiate.
Next take the natural log of both sides which results in the following,
.
Now differentiate both sides with respect to x.
, and when one isolates .
After isolating make sure to replace the y term in terms of x.
Example Question #2288 : Calculus
Find the limit:
undefined
This is an indeterminate limit of the form so we can use L'Hopital's rule:
(this only works when our original limit is an indeterminate form!)
We take the derivative of the top and bottom and this becomes
.
But yet again, this is indeterminate, of the same type. So we apply L'Hopital's rule one more time and get
which reduces to 3/2.
Example Question #2289 : Calculus
Given the acceleration of a baseball is given by , what is the average value of the acceleration function over the interval to ?
To find the average value of this function, we must use the formula:
To integrate this function, we must use these formulas:
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