If f: R R be defined by f(x)= array lcc 2 x & : & x>3 x^2 & : & 1 < x 3 3 x & : & x 1 array . then f(-1)+f(2)+f(4) is

Step-by-step solution

f(x)= array ccc 2 x & : & x>3 x^2 & : & 1 < x 3 3 x & : & x 1 array . aligned f(-1)+f(2)+f(4) & =3(-1)+(2)^2+2(4) & =-3+4+8=9 aligned