Question $15(1$ point$)$

Find the derivative of the given function.

$w(x)=sin(\frac{1}{x})$

a$)w^{\text{'}}(x)=-cos(\frac{1}{x})$

b$)w^{\text{'}}(x)=cos(\frac{1}{x})$

c$)w^{\text{'}}(x)=\frac{1}{x^2}cos(\frac{1}{x})$

d$)w^{\text{'}}(x)=-\frac{1}{x^2}cos(\frac{1}{x})$