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Some Applications Of Trigonometry

Question

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

Solution

Solution not provided.

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.

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Mock Test Series

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