Q. 73.5( 4 Votes )

# If then show that f(tanθ) = sin 2θ.

Answer :

Given:

Need to prove: f(tanθ) = sin 2θ

⇒ [as 1 + tan^{2} θ = sec^{2} θ]

⇒ [as and ]

⇒ [Proved]

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