How do you verify $sinthetacosthetatantheta+cos^2theta=1$ ?

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Answer 1 · 2016-11-12T09:02:38

see below

$sin theta cos theta tan theta+cos^2 theta=1$

Left Side: $=sin theta cos theta tan theta+cos^2 theta$

$=sin theta cos theta sin theta/cos theta+cos^2 theta$

$=sin theta cancelcos theta sin theta/cancelcos theta+cos^2 theta$

$=sin^2theta+cos^2theta$

$=1$

$:.=$ Right Side

How do you verify sinthetacosthetatantheta+cos^2theta=1sinthetacosthetatantheta+cos^2theta=1?