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Some Applications of Trigonometry
Question
Wired Faculty App

Prove the following identities:
 (sin4 θ - cos4 θ) = sin2 θ - cos2 θ = 2 sin2 θ-1 = 1- 2 cos2 θ.

Answer

Solution not provided.

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Some More Questions From Some Applications of Trigonometry Chapter

In ΔABC, right angled at B. AB = 24 cm, BC = 7 cm. Determine:
(i) sin A cos A,
(ii) sin C, cos C.