# Math Help - Derviatives confuse me :(

1. ## Derviatives confuse me :(

How do I find the derivative of X^(3/4) I have used a program to look but I don't understand these things -- can anyone help me? I will make it up to you

2. Originally Posted by SexyJenNeedsHelp
How do I find the derivative of X^(3/4) I have used a program to look but I don't understand these things -- can anyone help me? I will make it up to you
You can use the power rule: $f(x)=x^n$ so $f'(x)=nx^{n-1}$.

Here your $n=\frac{3}{4}$ so you have $\frac{3}{4}x^{\frac{3}{4}-1}$ which is $\frac{3}{4}x^{\frac{-1}{4}}$.

This can be simplified to $\frac{3}{4x^{\frac{1}{4}}}$ or $\frac{3}{4\sqrt[4]{x}}$.