Answer:

Step-by-step explanation:
We are given the integral of:

First, we can use a property to separate a constant out of integrand:

Next, expand the expression (integrand):

Since
then it can be simplified to:

Recall the formula:

For
, we need to convert to another identity since the integrand does not have a default or specific integration formula. We know that:

We can solve for
which is:

Therefore, we can write new integral as:

Evaluate each integral, applying the integration formula:

Then add all these boxed integrated together then we'll get:

Expand 4 in the expression:

Therefore, the answer is:

Answer: C) tan(pi/56)
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Explanation:
I recommend using a trig identity reference sheet. The specific identity we will be using is 
What we are given is in the form
with A = pi/7 and B = pi/8
A-B = (pi/7)-(pi/8)
A-B = pi(1/7-1/8)
A-B = pi(8/56 - 7/56)
A-B = pi*(1/56)
A-B = pi/56
Therefore,

Answer:
-3/6 -2/6 -1/6 0/6 1/6 2/6
Answer:
No, in Euclidean Geometry, parallel lines cannot intersect and will never intersect. If they do, they arent parallel.
Hope this helps :3
Step-by-step explanation: