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Some Applications Of Trigonometry

Question

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If A, B, C are interior angles of a $increment ABC$ Prove that $sec open parentheses fraction numerator straight A plus straight B over denominator 2 end fraction close parentheses space equals space cosec straight C over 2.$

Solution

Solution not provided.

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°

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