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यदि ` y= sin ^(-1) [x sqrt (1-x) -sqrt ( x)sqrt(1-x^(2) )]` तब `(dy)/(dx) ` का मान ज्ञात कीजिए| |
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Answer» `y=sin ^(-1) [x sqrt (1-x) -sqrt(x) sqrt(1-x^(2))]` माना ` x= sin theta, sqrt x =sin phi, ` तब ` y= sin ^(-1) [sin theta cos phi - sin phi cos theta ] =sin ^(-1) [sin (theta -phi )] ` ` y= theta-phi rArr " "sin ^(-1) x- sin ^(-1) sqrt (x) ` ` therefore (dy)/(dx) =(d)/(dx) { sin ^(-1) x-sin ^(-1) sqrtx) ` ` " "= (d)/(dx) (sin ^(-1) x) -(d)/(dx) (sin ^(-1) sqrt(x))` ` " "= [ (1)/(sqrt( 1-x^(2)) )-(1)/(2sqrt(x)*sqrt(1-x))]` |
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