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7. Trigonometric Identities
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Q13 of 48 Page 86

Prove the following:

Taking L.H.S we get,



⇒


⇒


⇒ sin2 θ = R.H.S


Hence, proved.


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11

Prove the following:

12

Prove the following:

14

Prove the following:

15

If sin 3θ = cos (θ – 6°) where 3θ and (θ – 6°) are acute angles then find the value of θ.

Questions · 48
7. Trigonometric Identities
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