Calculus Examples

Evaluate the Integral 8 integral from 0 to 1 of x^3 square root of 1-x^2 with respect to x
Step 1
Let , where . Then . Note that since , is positive.
Step 2
Simplify terms.
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Step 2.1
Simplify .
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Step 2.1.1
Apply pythagorean identity.
Step 2.1.2
Pull terms out from under the radical, assuming positive real numbers.
Step 2.2
Simplify.
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Step 2.2.1
Raise to the power of .
Step 2.2.2
Raise to the power of .
Step 2.2.3
Use the power rule to combine exponents.
Step 2.2.4
Add and .
Step 3
Factor out .
Step 4
Using the Pythagorean Identity, rewrite as .
Step 5
Let . Then , so . Rewrite using and .
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Step 5.1
Let . Find .
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Step 5.1.1
Differentiate .
Step 5.1.2
The derivative of with respect to is .
Step 5.2
Substitute the lower limit in for in .
Step 5.3
The exact value of is .
Step 5.4
Substitute the upper limit in for in .
Step 5.5
The exact value of is .
Step 5.6
The values found for and will be used to evaluate the definite integral.
Step 5.7
Rewrite the problem using , , and the new limits of integration.
Step 6
Multiply .
Step 7
Simplify.
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Step 7.1
Rewrite as .
Step 7.2
Multiply by by adding the exponents.
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Step 7.2.1
Use the power rule to combine exponents.
Step 7.2.2
Add and .
Step 8
Split the single integral into multiple integrals.
Step 9
Since is constant with respect to , move out of the integral.
Step 10
By the Power Rule, the integral of with respect to is .
Step 11
Combine and .
Step 12
By the Power Rule, the integral of with respect to is .
Step 13
Combine and .
Step 14
Substitute and simplify.
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Step 14.1
Evaluate at and at .
Step 14.2
Evaluate at and at .
Step 14.3
Simplify.
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Step 14.3.1
Raising to any positive power yields .
Step 14.3.2
Cancel the common factor of and .
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Step 14.3.2.1
Factor out of .
Step 14.3.2.2
Cancel the common factors.
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Step 14.3.2.2.1
Factor out of .
Step 14.3.2.2.2
Cancel the common factor.
Step 14.3.2.2.3
Rewrite the expression.
Step 14.3.2.2.4
Divide by .
Step 14.3.3
One to any power is one.
Step 14.3.4
Subtract from .
Step 14.3.5
Multiply by .
Step 14.3.6
Multiply by .
Step 14.3.7
Raising to any positive power yields .
Step 14.3.8
Cancel the common factor of and .
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Step 14.3.8.1
Factor out of .
Step 14.3.8.2
Cancel the common factors.
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Step 14.3.8.2.1
Factor out of .
Step 14.3.8.2.2
Cancel the common factor.
Step 14.3.8.2.3
Rewrite the expression.
Step 14.3.8.2.4
Divide by .
Step 14.3.9
One to any power is one.
Step 14.3.10
Subtract from .
Step 14.3.11
To write as a fraction with a common denominator, multiply by .
Step 14.3.12
To write as a fraction with a common denominator, multiply by .
Step 14.3.13
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
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Step 14.3.13.1
Multiply by .
Step 14.3.13.2
Multiply by .
Step 14.3.13.3
Multiply by .
Step 14.3.13.4
Multiply by .
Step 14.3.14
Combine the numerators over the common denominator.
Step 14.3.15
Subtract from .
Step 14.3.16
Combine and .
Step 14.3.17
Multiply by .
Step 15
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
Mixed Number Form:
Step 16