How do you verify #sinthetatantheta=sectheta-costheta#?

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Answer 1 · 2016-11-17T22:08:53

see below

#sin theta tan theta = sec theta- cos theta#

Right Side : #=sec theta- cos theta#

#=1/cos theta- cos theta#

#=(1-cos^2 theta)/cos theta#

#=sin^2 theta/cos theta#

#=sin theta*sintheta/costheta#

#=sin theta tan theta#

#:.=# Left Side