perimeter of a rectangle swimming pool is 154m, its length is 2m twice more than its breadth. find its length and braeth
perimeter of a rectangle swimming pool is 154m, its length is 2m twice more than its breadth. find its length and braeth
prove that function f from N to Y Defined by F(X) is equal to x2 where Y={ y/ y = x2,x belongs to N}is invertible also find f inverse of x