Q If y = e a cos - 1 x , t h e n s h o w t h a t ( 1 - x 2 ) y 2 - x y 1 - a 2 y = 0 Share with your friends Share 0 Varun Rawat answered this y = ea cos-1xDifferentiating both sides wrt x, we getdydx = ea cos-1x × -a1-x2 = -ay1-x2 ......1Differentiating both sides wrt x, we getd2ydx2 = 1-x2 × ddx-ay - -ay×ddx1-x21 - x2⇒1 - x2d2ydx2 = -a1-x2dydx + ay×-2x21- x2⇒1 - x2d2ydx2 = -a1-x2dydx + x×-ay1-x2⇒1 - x2d2ydx2 = -a1-x2dydx + xdydx Using 1⇒1 - x2d2ydx2 = -a 1-x2 × -ay1-x2 + xdydx Using 1⇒1 - x2d2ydx2 - a2y - xdydx = 0⇒1 - x2y2 - a2y - xy1 = 0 0 View Full Answer