d/dx[t/(1+t^2)^(1/2)](adsbygoogle = window.adsbygoogle || []).push({});

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

I can tget that for the life of me. Used product rule and I cant 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

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# Homework Help: Differentiating t/(1+t^2)^(1/2)

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