Let e = (x, y) er:|x| <1,|y| <1}. define f: e>r by f(x, y) = then, the range 54. 1+x+y y2 x+y . hen, the range of f is a (a) connected open set (b) connected cl

Let E = (x, y) ER:|x| <1,|y| <1}. Define f: E>R by f(x, y) = Then, the range 54. 1+x+y y2 X+y . hen, the range of f is a (A) Connected open set (B) Connected closed set (C) Bounded open set (D) Closed and unbounded set O lot Ivl donoto tho.arootoct intoaar loce thon cr cauol to v Thar