Question

The range of f(x) = sgn (2^x) + sgn (|x - 5|) is
(1) {1, 2}
(2) {2}
(3) {-2, 0,2}
(4) {-1, 0, 1}
Note: Sgn means signum function , |x-5| means modulus of x-5

plz provide proper step by step explaination.... thank you​

Answer 1

Answer:

3) one is correct answer please mark me briliant