### Home > CALC > Chapter Ch3 > Lesson 3.4.2 > Problem 3-165

3-165.

Before differentiating, rewrite *y* with a negative fractional exponent.

Before differentiating, rewrite *y*. Think: trig identities!

Before differentiating, rewrite *y* with a fractional exponent.

Before differentiating, rewrite *y* by simplifying the fraction and rewriting with a fractional exponent.