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What is the value of sin^230°-cos^230°?? |
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Answer» 0* = (1/2)^2 =(1/4) And Cos^2 30* =(ROOT 3/2)^2 =(3/4) Sin^2 30* - cos^2 30*= 1/4 - 3/4 = -1/2 |
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