Calculus Examples

Find the Derivative - d/dx 1/2*(e^x+e^(-x))
Step 1
Differentiate.
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Step 1.1
Since is constant with respect to , the derivative of with respect to is .
Step 1.2
By the Sum Rule, the derivative of with respect to is .
Step 2
Differentiate using the Exponential Rule which states that is where =.
Step 3
Differentiate using the chain rule, which states that is where and .
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Step 3.1
To apply the Chain Rule, set as .
Step 3.2
Differentiate using the Exponential Rule which states that is where =.
Step 3.3
Replace all occurrences of with .
Step 4
Differentiate.
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Step 4.1
Since is constant with respect to , the derivative of with respect to is .
Step 4.2
Differentiate using the Power Rule which states that is where .
Step 4.3
Simplify the expression.
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Step 4.3.1
Multiply by .
Step 4.3.2
Move to the left of .
Step 4.3.3
Rewrite as .
Step 5
Simplify.
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Step 5.1
Apply the distributive property.
Step 5.2
Combine and .
Step 5.3
Combine and .