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