To find out one book you have to divide 65 by 5
65/5 = 13
The answer is $13 per book
Answer:
yep
Step-by-step explanation:
Answer:10n^2-10
Step-by-step explanation:5n *2n +5n*2-5*2n-5*2
10n^2+10n-10n-10
I think it would be easier to understand when u see a problem worked out, prime factorization of 18:
18
/\
6X3
/\
3X2
so the prime factorization is 2X3X3
hope that was helpful! :D
Answer:

Step-by-step explanation:
Given that:

Also,
is in first quadrant.
To find:

Solution:
Let us have a look at the cosine of twice the angle in terms of tangent of the angle.
Suppose, we are given the value of
, then the formula can be written as:

In terms of
, we can re-write the formula as:

is in first quadrant, but
can be in the second quadrant therefore, we have a negative value of our answer i.e.
.
Therefore, the answer is:
