anonymous 5 years ago ok to find the derivative of f(x)=arctan(sqrt(3x-1)) i got all the way to 4/sqrt(-16x^2+8x)...that is wrong...what am i missing

1. Vijay

$[ 1 / (1 + 3x -1 )] * 2 *3 * 1/\sqrt{3x-1}$

2. Vijay

$[ 1 / (1 + 3x -1 )] * 1/2 *3 * 1/\sqrt{3x-1}$

3. anonymous

sorry vijay i meant i got that answer for the other problem i just posted can u look at the other one i just posted

4. Vijay

where did u post that ?

5. anonymous

i just posted it

6. anonymous

ooops,,,wrong problem...i meant i got that answer for f(x)=sin^-1(4x+1)

7. anonymous

this is the problem that goes to the answer i got wrong