# Help with simple Calculus and

• November 25th 2012, 08:55 AM
Benja303
Help with simple Calculus and
Please explain attached pdf numbers 7 and 8 section B.

Please do it step by step. I don't understand what to do with square roots

This is a section of an assignment, it's not for marks and we are given the answers if you don't believe me
• November 25th 2012, 09:04 AM
skeeter
Re: Help with simple Calculus and
$\sqrt{x} = x^{\frac{1}{2}}$
• November 25th 2012, 07:23 PM
hollywood
Re: Help with simple Calculus and
So you have $y=x^\frac{1}{2}+5x^{-\frac{1}{2}}$ on problem 7 and $3x^\frac{1}{2}+x^{-\frac{1}{2}}$ on problem 8, and you can use the power rule.

- Hollywood