CBSE BOARD X, asked by yuvi9668, 1 year ago

prove this identity

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Answers

Answered by ihrishi

1

Explanation:

Perhaps Left hand should be

${tan}^{2} A \: - {tan}^{2} B$

Sorry unable to edit it.

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Answered by ahmedsaamifaiyaz

0

Answer: tanA= Sin/cos and tanB = sin/cos

Sin/cos X sin/cos = SinA.SinB

CosA.cosB

Explanation:

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