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Each question has four choices a,b,c and d out of which only one is correct. Each question contains Statement 1 and Statement 2. 1) Both the statements are True , and Statement 2 in the correct explanation of Statement 1. 2) Both the statements are True but Statement 2 is NOT the correct explanation of Statement 1. 3) Statement 1 is True and Statement 2 is False 4) Statement 1 is False and Statement 2 is True. Statement 1: Number of roots of the equation `cot^(-1)x+cos^(-1)2x+pi=0,` is zero. Statement 2: Range of `cot^(-1)a n dcos^(-1)x` is `(0,pi)a n d(0,pi),` respectively.

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