(1-cosA)(1+cosA)=tanA sinA. plz prove
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convert sec a into 1/ cos a.. take the lcm.. use the identity in the numberator..it will become sin2 a / cos a.. same on the rhs.. thus rpoved
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Aryamanutkarsh:
wait
okh
can youedit the question please again?
i'll do it
(1-cos A)(1+secA)=tanA sinA
ok
check ittt one
now
please do mark the answer as brainliest
okhh
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