tanθ interms of cosθ is.
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Step-by-step explanation:
Using trignomentric identies:- ==>Tantheta =Sin theta /Cos theta
. Sin2theta+Cos2theta=1
===>Sintheta=√1+_ cos2theta
==>tantheta=costheta/Sintheta
=>+_√1+_cos2theta/costheta
hope it will help you
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