(xy^2 + x^2y)f(y) dy , then f(x)=
if f(x)=x+
x(sinx)^2cosx dx
if x^2-ax+b &x^2-cx+d have common root and x^2-cx+d has equal roots then b+d=
number of onto functions from A={1,2,3,4,5} to B={a,b,c,d} is
the area bounded by curve y=3/mod x and y+mod(2-x) =2