19 out come
9 for the first 3 questions
10 for the last 5 questions
Hope this helps ;)
Answer:
1
Step-by-step explanation:
First, convert all the secants and cosecants to cosine and sine, respectively. Recall that
and
.
Thus:


Let's do the first part first: (Recall how to divide fractions)

For the second term:

So, all together: (same denominator; combine terms)

Note the numerator; it can be derived from the Pythagorean Identity:

Thus, we can substitute the numerator:

Everything simplifies to 1.
Answer:
Oo this is tricky I wanna say C and E maybe Im sorry if it's wrong.