In - ABC- acos2B-cos2C-cos Ac cos C-bcos B-

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Trigonometric Ratios of Complementary Angles

In Δ ABC, aco...

Question

In $Δ A B C$ , $a ({cos}^{2} B + {cos}^{2} C) + cos A (c cos C + b cos B) =$

a

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c

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0

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