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If Alpha and Beta are acute angles such that cos (Alpha)^2 + cos (Beta)^2 = 3/2 and sin(Alpha). sin(Beta) = 1/4, then Alpha + Beta = A) 30degreesB) 45degreesC) 60degreesD) 90degreesThis is a PYQ of KVPY, Year 2007 |
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Answer» If Alpha and Beta are acute angles such that cos (Alpha)^2 + cos (Beta)^2 = 3/2 and sin(Alpha). sin(Beta) = 1/4, then Alpha + Beta = A) 30degrees B) 45degrees C) 60degrees D) 90degrees This is a PYQ of KVPY, Year 2007 |
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