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When, sinA+sinB =2 then what's the value of cosA+cosB ? |
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Answer» Answer: It means A and B are 90 because SIN90 = 1 sin A = 1/Cos A and Sin b = 1/cos B ACCORDING to trignomatry 1/Cos A + 1/ Cos B = 2 Cos A + Cos B = 2 X Cos A Cos B Cos A + Cos B = 2 x Cos 90 x Cos 90 = 0 Answer |
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