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lim(xrarr1^(-)) (sqrtpi-sqrt(2sin^-1x))/...

`lim_(xrarr1^(-)) (sqrtpi-sqrt(2sin^-1x))/sqrt(1-x)=` (A) `sqrt(2/pi)` (B) `sqrt(pi/2)` (C) `1/pi` (D) `sqrt(1/pi)`

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