Recall Euler's theorem: if
, then

where
is Euler's totient function.
We have
- in fact,
for any
since
and
share no common divisors - as well as
.
Now,

where the
are positive integer coefficients from the binomial expansion. By Euler's theorem,

so that

Answer:
=1
Step-by-step explanation:
Answer:
5/6 can´t be simplified
Step-by-step explanation:
Vertical angles, because the definition of vertical lines is each of the pairs of opposite angles made by two intersecting lines.
Answer:
The number of non empty proper subsets of a set with 3 elements is =23−2=8−2=6.