High School Math : Calculus II — Integrals

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #51 : Calculus Ii — Integrals

Possible Answers:

Correct answer:

Explanation:

To find the definite integral, we can use the Fundamental Theorem of Calculus that states that if , then .

Therefore, we need to find the indefinite integral of our equation to start.

To find the indefinite integral, we can use the reverse power rule. We raise the exponent of the variable by one and divide by our new exponent. For this problem that would look like this:

Remember to include a  to cover any potential constant that might be in our new equation.

Plug that into FTOC:

Notice that the 's cancel out.

Plug in our given values.

Example Question #52 : Calculus Ii — Integrals

Possible Answers:

Correct answer:

Explanation:

To find the definite integral, we can use the Fundamental Theorem of Calculus which states that if , then .

Therefore, we need to find the indefinite integral of our equation to start.

To find the indefinite integral, we can use the reverse power rule. We raise the exponent of the variable by one and divide by our new exponent.

Remember to include a  to cover any potential constant that might be in our new equation.

Plug that into FTOC:

Notice that the 's cancel out.

Plug in our given values.

Example Question #111 : Asymptotic And Unbounded Behavior

Possible Answers:

Correct answer:

Explanation:

The fundamental theorem of calculus states that if , then .

First, we need to find the indefinite integral of our given equation. Just like with the derivatives, the indefinite integrals or anti-derivatives of trig functions must be memorized.

Don't forget the to compensate for any potential constant!

Plug this in to our FTOC:

.

Notice that the 's cancel out.

.

Now plug in the given values.

Example Question #21 : Finding Integrals

Possible Answers:

Correct answer:

Explanation:

To solve for the definite integral, use the fundamental theorem of calculus. If , then .

First we need to find the indefinite integral.

To find the indefinite integral of our given equation, we can use the reverse power rule: we raise the exponent by one and then divide by that new exponent.

Don't forget to include a to compensate for any constant!

Plug this into our first FTOC equation:

Notice that the 's cancel out.

Plug in our given values.

Example Question #55 : Calculus Ii — Integrals

Possible Answers:

Correct answer:

Explanation:

We can solve this problem using the Fundamental Theorem of Calculus:Iif , then .

To use that equation for this problem, we need to find the indefinite integral of our given equation.

To find the indefinite integral of , we can use the reverse power rule. To do this, we raise our exponent by one and then divide the variable by that new exponent.

Don't forget to include a  to cover any constant!

Now we can plug that into the FTOC:

Notice that the 's cancel out.

Plug in our given values:

Example Question #31 : Finding Definite Integrals

Possible Answers:

Correct answer:

Explanation:

To solve this problem we can use the Fundamental Theorem of Calculus: If , then .

First we need to find the indefinite integral.

Since we're adding terms, we take the integral or anti-derivative of each part separately. For , we can use the reverse power rule, which states that we raise the exponent of the variable by one and then divide by that new exponent. For sine, we use our trigonometric integral rules.

Remember, .

Don't forget to include a  to account for any constants!

Plug that into the FTOC:

Notice that the 's cancel out.

Plug in our given values:

Example Question #51 : Calculus Ii — Integrals

Possible Answers:

Correct answer:

Explanation:

To find the definite integral, we can use the Fundamental Theorem of Calculus. This states that if , then .

To use the FToC, we need to find our indefinite integral of our given equation.

To find the indefinite integral, or anti-derivative, we can use the reverse power rule. We raise the exponent of each variable by one and divide by that new exponent.

Don't forget to include a  to cover any constant!

Simplify.

We can now plug that into FToC!

Notice that the 's cancel out.

Plug in our given values.

Example Question #33 : Finding Definite Integrals

Possible Answers:

Undefined

Correct answer:

Explanation:

Remember the Rundamental Theorem of Calculus: If , then .

To solve for the indefinite integral, we can use the reverse power rule. We raise the power of the exponents by one and divide by that new exponent. For this problem, that would look like:

Remember, when taking an integral, definite or indefinite, we always add , as there could be a constant involved.

Now we can plug that back into the problem.

Notice that the 's cancel out. Plug in the values given in the problem:

Example Question #61 : Asymptotic And Unbounded Behavior

Possible Answers:

Correct answer:

Explanation:

The integral of  is .  The constant 3 is simply multiplied by the integral.  

Example Question #2 : Finding Indefinite Integrals

Possible Answers:

Correct answer:

Explanation:

To integrate , we need to get the two equations in terms of each other. We are going to use "u-substitution" to create a new variable, , which will equal .

Now, if , then 

 

Multiply both sides by  to get the more familiar: 

Note that our , and our original equation was asking for a positive .

That means if we want  in terms of , it looks like this:

Bring the negative sign to the outside:

.

We can use the power rule to find the integral of :

Since we said that , we can plug that back into the equation to get our answer:

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