Differentiate. Please use fractions of lowest terms rather than decimals in your final answer.
y=9t+9t4+7t6\displaystyle {y}=\frac{{9}}{{t}}+\frac{{9}}{{t}^{{4}}}+\frac{{7}}{{\sqrt[{{6}}]{{{t}}}}}y=t9+t49+6t7
y′=\displaystyle {y}'=y′= Preview Question 6
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