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If y=cos^(-1)((1-x^(2))/(1+x^(2))), then Statement I (dy)/(dx)=(2)/(1+x^(2)) for x"inR Statement II cos^(-1)((1-x^(2))/(1+x^(2)))={(2tan^(-1)x,,xle0,),(-2tan^(-1)x,,xlt0,):} |
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Answer» Both STATEMENT I and Statement II are CORRECT and Statement II is the correct EXPLANATION of Statement I |
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