The solution of primitive equation −ydydx=x√1−y2 is y=y(x), where y(x) is non-constant. If y(0)=1, then which of the following is/are correct
If y(x) is the solution of the differential equation (x+2)dydx=x2+4x−9, x≠2 and y(0)=0, then y(−4) is equal to