# Differentiate this, i need help

y=ex(x is suppost to be smaller and on the top right of e)/x squared

i a suppost to differentiate this, well i wrote -2ex/x cubed+ ex/ x sq.

now u probabl might be confused by the way i wrote it since i dont know how to put the right things for my problems,

well i set up the problem how do i figure out the answer,

i know the answer but how do i figure it out

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## Answers and Replies

ranger
Gold Member
Is this what you are getting at y = ex/x2?

Would it help if you rewrite it as a product rule:
ex.x-2

cristo
Staff Emeritus
i a suppost to differentiate this, well i wrote -2ex/x cubed+ ex/ x sq.

This is correct.

Gib Z
Homework Helper
i know the answer but how do i figure it out

$$y=\frac{e^x}{x^2}$$
Let $u=e^x$ and $v=x^2$.

By the quotient rule, the derivative is $$\frac{u'v-v'u}{v^2}$$

cristo
Staff Emeritus