Calculus Examples

Find the Derivative - d/dx natural log of 6x-cos(x)
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
By the Sum Rule, the derivative of with respect to is .
Step 2.2
Since is constant with respect to , the derivative of with respect to is .
Step 2.3
Differentiate using the Power Rule which states that is where .
Step 2.4
Multiply by .
Step 2.5
Since is constant with respect to , the derivative of with respect to is .
Step 3
The derivative of with respect to is .
Step 4
Multiply.
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Step 4.1
Multiply by .
Step 4.2
Multiply by .
Step 5
Simplify.
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Step 5.1
Reorder the factors of .
Step 5.2
Apply the distributive property.
Step 5.3
Combine and .
Step 5.4
Combine and .
Step 5.5
Combine the numerators over the common denominator.