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If SinA=1/2 and CosB=1/2 then A+B=.... *0°30°60°90°Other: |
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Answer» ong>ANSWER: sinA = 1/2 => sinA = sin30 => A = 30 COSB = 1/2 => CosB = cos60 A + B = 30 +60 =90 =>Option D is correct |
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