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Some Applications of Trigonometry
Question
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Prove the following identities:
(sin4 θ + cos4 θ) = 1 - 2 sin2 θ . cos2 θ

Answer

Solution not provided.

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Some More Questions From Some Applications of Trigonometry Chapter

Choose the correct option and justify your choice:
sin 2A = 2 sin A is true when A = 
(A) 0°         (B) 30°         (C) 45°       (D) 60°