Question

v) Let f:R\{1} → R \{2} be defined by f(x) =
2x + 1/x-1
Then f1(1) =
a) 1
c) - 1
b) O
d) - 2​

Answer 1

v) Let f:R\{1} → R \{2} be defined by f(x) =

2x + 1/x-1

Then. f1(1) = b) O