Calculus Examples

Find the Derivative - d/dx cos(3x)
Step 1
Differentiate using the chain rule, which states that is where and .
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Step 1.1
To apply the Chain Rule, set as .
Step 1.2
The derivative of with respect to is .
Step 1.3
Replace all occurrences of with .
Step 2
Differentiate.
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Step 2.1
Since is constant with respect to , the derivative of with respect to is .
Step 2.2
Multiply by .
Step 2.3
Differentiate using the Power Rule which states that is where .
Step 2.4
Multiply by .
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