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[" Allich of the following is not true? "],[" If "x in[-1,0]" then "cos^(-1)(2x^(2)-1)=2sin^(-1)x],[" B) If "x in[0,1]" then "cos^(-1)(2x^(2)-1)=2sin^(-1)x],[" C) If "x in[-1,0]" then "cos^(-1)(2x^(2)-1)=2sin^(-1)x+],[" D) If "x in[0,1]" then "cos^(-1)(2x^(2)-1)=pi-2sin^(-1)x]

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sin^(-1)(2cos^(2)x-1)+cos^(-1)(1-2sin^(2)x)=