Trigonometry.
Asked by khushal305 | 27th Sep, 2009, 11:48: AM
Expert Answer:
tan2 θ - sin2 θ = sin2 θ/cos 2 θ - sin2 θ
= sin2 θ(sec2 θ-1)
=sin2 θ tan2 θ =RHS
Answered by | 29th Sep, 2009, 04:36: PM
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