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सिद्ध कीजिए कि arc cot"{(sqrt(1+sinx)+sq...

सिद्ध कीजिए कि `arc cot"{(sqrt(1+sinx)+sqrt(1-sinx))/(sqrt(1+sinx)-sqrt(1-sinx))}=(pi)/(2)-(x)/(2), "यदि " (pi)/(2) lt x lt x `

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Cot^(-1){(sqrt(1-sinx)+sqrt(1+sinx))/(sqrt(1-sinx)-sqrt(1+sinx))}=

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