Step-by-step explanation:
If you know, the sine. You must find the cos ratio, using the Pythagorean trig theorem.
Next, you use the half angle identity for sin

Example.

We must find

First, use the Pythagorean identity





Now use the half angle identiy




So the answer for our example is 1/2
Answer:
A
Step-by-step explanation:
You multiply the number of hours he worked to the amount he makes and set it equal to the total he made.
Eef. (dont make me miss unus annus again)
Answer:
n^14
Step-by-step explanation:
Simplify. Note that when you have a power on top of a power, you multiply the two powers.
(n^7)^2 = n^(7 * 2) = n^14
n^14 is your answer.
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E would be (-8,4), F would be (16,-8) and G would be (-24,-16). This is the correct answer. I hope this helps.