
Using the fact that cos is 2π-periodic, we have

That is,
for any
and integer
.

We get 2 solutions in the interval [0, 2π] for
and
,

What are the actions that you can choose from?
Answer: on the outside .
Step-by-step explanation:
One of the other angles is 72. Vertically opposite angles are equal.
Two angles that are side by side on this arrangement are supplementary.
That means they are to 180
x + 72 = 180
x = 180 - 72
x = 108
Answer
the for angles are
72 + 72 + 108 + 108
Answer:
1085
Step-by-step explanation:
100 - 69 =31%
3500 /100 =35
35 x 31 = 1085