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Solution - Trigonometric Identities

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Question

Prove the following identities:

`(i) 2 (sin^6 θ + cos^6 θ) –3(sin^4 θ + cos^4 θ) + 1 = 0`

`(ii) (sin^8 θ – cos^8 θ) = (sin^2 θ – cos^2 θ) (1 – 2sin^2 θ cos^2 θ)`

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Reference Material

Solution for concept: Trigonometric Identities. For the course 8th-10th CBSE
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