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(०5 (५9०१-७9) - Sim(So+e) |
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Answer» cos(40 - A) = sin[ 90 - (40 - A)] = sin(50 + A) cos(40 - A) - sin (50 +A)= sin(50 + A) - sin (50 + A) = 0 PLEASE HIT THE LIKE BUTTON |
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