Math, asked by ak9871923357, 5 months ago

If sin^2 a + sin^2 b + sin^2 c + sin^2 d = 0 , then minimum of osa + Cosb + Cosc + Cosd is (A) 4 (C) - 6 (D) - 4 (B) 0​

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Answered by manohar1094
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