質問: सिद्ध कीजिए कि `"tan"^(-1)((sqrt(1+x)-sqrt(1-x))/(sqrt(1+x)+sqrt(1-x)))=(pi)/4-1/2"cos"^(-1)x-1/(sqrt(2))lexle1` सिद्ध कीजिए कि `"tan"^(-1)((sqrt(1+x)-sqrt(1-x))/(sqrt(1+x)+sqrt(1-x)))=(pi)/4-1/2"cos"^(-1)x-1/(sqrt(2))lexle1`
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