Differentiating t/(1+t^2)^(1/2)

[P.O.L.A.R]

d/dx[t/(1+t^2)^(1/2)]

The answer say 1/(1+t^2)^(3/2)

I can tget that for the life of me. Used product rule and I can't seem to simplify it I come up with

2/(1+t^2)^(3/2) Where does the 2 go? This is for a principal unit vector problem so a quick solution is all i need. thanks

 

[P.O.L.A.R]

nevermind i got it forgot about the 2 on the bottom doh.

 

[arildno]

I'd say the answer was 0, but that's just my opinion..

 

[Gib Z]

I'd say the answer was 0, but that's just my opinion..

lol...