Answer:
f(1)=3
Step-by-step explanation:
Given that f(x)=1/x+2/x
and substitute x=1
f(1)=1/1+2/1
=3
Hope it helps....
f(1) = 3
replace the x's in f(x) with 1's, so
f(1) = 1/(1) +2/(1)
simplify the fractions, since 1 is on the bottom it's easy
f(1) = 1 + 2
add
