Answer
$y' = -cosecx\ cotx -\frac{2}{\sqrt x} -\frac{7}{e^{x}}$
Work Step by Step
$y = cosecx -4\sqrt x + \frac{7}{e^{x}}$
$y' = -cosecx\ cotx -\frac{2}{\sqrt x} -\frac{7}{e^{x}}$
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