Using the definition of the derivative, differentiate the function f(x)=x2+2x−2.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
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Chapter3: Functions
Section3.5: Transformation Of Functions
Problem 5SE: How can you determine whether a function is odd or even from the formula of the function?
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Using the definition of the derivative, differentiate the function f(x)=x2+2x−2.

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Step 1

To find the derivative of the function f(x)=x2+2x-2

By the limit definition of the derivative, 

The derivative of the function f(x) is f'(x)=limh0f(x+h)-f(x)h

As f(x)=x2+2x-2

Thus, f(x+h)=(x+h)2+2(x+h)-2

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