Question

if f(x)=1+x/2-x then f(1/x) is equal to
a)2-x/1+x
b)x+1/x-2
c)x-1/2x+1
d)x+1/2x-1

Answer 1

a. 2-1/x+1/x=2

b. 1/x+x+1

c. 1/x-1/2x+1

d. 1/x+1/2x-1