prove that sin theta-2sin^2 theta/2cos^3 theta-cos theta = tan theta
GeniusShweta:
I think that's 2 sin ^3 theta...dear see question plz
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○=theta...
Sin○-2sin^3○/2cos^3○-cos○
=》sin○/cos○(1-2sin^2○/2cos^2○-1)
=》tan○[1-2 (1-cos^2○)/2cos^2○-1]
=》tan○(1-2+2cos^2○/2cos^2○-1)
=》tan○(2cos^2○-1/2cos^2○-1)
=》tan○
hope helps dear
Sin○-2sin^3○/2cos^3○-cos○
=》sin○/cos○(1-2sin^2○/2cos^2○-1)
=》tan○[1-2 (1-cos^2○)/2cos^2○-1]
=》tan○(1-2+2cos^2○/2cos^2○-1)
=》tan○(2cos^2○-1/2cos^2○-1)
=》tan○
hope helps dear
hloo
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