1.

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,):}

Answer»

Both STATEMENT I and Statement II are CORRECT and Statement II is the correct EXPLANATION of Statement I
Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I
Statement I is correct but Statement II is incorrect
Statement II is correct but Statement I is incorrect.

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