## anonymous 5 years ago i cant seem to find the derivitave of the square root(3x+1). Any idea how to help?

1. anonymous

d/dx (3x+1)^(1/2) = (1/2)(3x+1)^(-1/2) (3) = (3/2)(3x+1)^(-1/2)

2. anonymous

$\frac{3}{2 \sqrt{3 x+1}}$ Just use the chain rule. The inside or u would be 3x+1

3. anonymous

SUPER THANKS!! We havent been taught this chain rule tho i have seen it talked about on google. I came up with 3/3x+1

4. anonymous

um... d/dx(3x+1)^(1/2) to change the square root into a power. for the power rule...

5. anonymous