Engineering Board Exam Reviewer · Derivatives of Trigonometric Functions · medium

Find y' if y= x x.

1. - 2 x x + 3 x
2. 2 x x + 3 x
3. 2 x
4. 2 x x

Answer

B. 2 x x + 3 x

Solution

Product rule: y'= 2x· x+ x· x x= 3x+ x 2x.

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