The function f is defined for all integers n by the following rule. f(n) is the number of positive integers ecah of which is less than n and has no positive factor in common with n other than 1. If p is any prime, then f(p)=?
A. p-1
B. p-2
C. (p+1)/2
D. (p-1)/2
E. 2
The OA is A .
Guys, does this questions makes sense to anyone? I am struggling. Does it mean that:
f(n) is a list of positive integers. Am I right?
for e.g f(5) = 3,4.
I am stuck after this. Can any expert help me with this PS question please?
A. p-1
B. p-2
C. (p+1)/2
D. (p-1)/2
E. 2
The OA is A .
Guys, does this questions makes sense to anyone? I am struggling. Does it mean that:
f(n) is a list of positive integers. Am I right?
for e.g f(5) = 3,4.
I am stuck after this. Can any expert help me with this PS question please?
