Calculus Examples

Evaluate the Integral integral of (e^x-e^(-x))/(e^x+e^(-x)) with respect to x
Step 1
Let . Then , so . Rewrite using and .
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Step 1.1
Let . Find .
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Step 1.1.1
Differentiate .
Step 1.1.2
By the Sum Rule, the derivative of with respect to is .
Step 1.1.3
Differentiate using the Exponential Rule which states that is where =.
Step 1.1.4
Evaluate .
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Step 1.1.4.1
Differentiate using the chain rule, which states that is where and .
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Step 1.1.4.1.1
To apply the Chain Rule, set as .
Step 1.1.4.1.2
Differentiate using the Exponential Rule which states that is where =.
Step 1.1.4.1.3
Replace all occurrences of with .
Step 1.1.4.2
Since is constant with respect to , the derivative of with respect to is .
Step 1.1.4.3
Differentiate using the Power Rule which states that is where .
Step 1.1.4.4
Multiply by .
Step 1.1.4.5
Move to the left of .
Step 1.1.4.6
Rewrite as .
Step 1.2
Rewrite the problem using and .
Step 2
The integral of with respect to is .
Step 3
Replace all occurrences of with .
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