A function f (x) is given by the equation , x2f′(x)+2xf(x)−x+1=0,f(1)=0.f(x)=ax2+bx+1px2+qx+r, then a2+b2+p2+q2+r2 =
Let f:(0,∞)→R be a differentiable function such that f′(x)=2−f(x)x for all xϵ(0,∞) and f(1)≠1. Then