1.The solution of the differential equation dydx+1−y21−x2=0\frac{dy}{dx} + \sqrt{\frac{1-y^2}{1-x^2}} = 0dxdy+1−x21−y2=0 isa.cos−1x+cos−1y=c\cos^{-1} x + \cos^{-1} y = ccos−1x+cos−1y=cb.sin−1x+sin−1y=c\sin^{-1} x + \sin^{-1} y = csin−1x+sin−1y=cc.cosh−1x+cosh−1y=c\cosh^{-1} x + \cosh^{-1} y = ccosh−1x+cosh−1y=cd.sinh−1x+sinh−1y=c\sinh^{-1} x + \sinh^{-1} y = csinh−1x+sinh−1y=cLogin to continueOnly logged in users canattempt or see the solution.