Question

Q: Prove that :

( tan 2ⁿ Φ )/tan Φ = (1 + sec 2Φ)(1 + sec 2²Φ)(1 + sec 2³Φ)(1 + sec 2⁴Φ)...(1 + sec 2ⁿΦ)

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Answer 1

Answer:

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