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What is the value of (cos2 67°-sin2 23°) |
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Answer» 0 Maf kiya Sorry.. For some mistakes in answer.. Actually i didn\'t see the question properly =Cos 2 67°-sin2 23° =Cos(90-23)-sin2 23°=Sin2 23-sin2 23=0 Dk niche comments pado As we know.. Cos2 90°-A=sin A So cos267°=sin2 23° ...cos2 90-23= sin2 23 ....sin2 23°= sin2 23°which is equal to 1 Really 0 Ya its 0 0 |
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