(adsbygoogle = window.adsbygoogle || []).push({}); tan(t) = x/a => sin(t) = x/sqrt( a^2 + x^2) ???

Folks,

In the solution guide to Kline's calculus book, he gives the following in working a problem:

tan(t) = x/a => sin(t) = x/sqrt( a^2 + x^2)

Can someone explain why this is the case?

Thanks,

Tristan

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# Homework Help: Tan(t) = x/a => sin(t) = x/sqrt( a^2 + x^2) ?

**Physics Forums | Science Articles, Homework Help, Discussion**