You can't cheat you can't ask someone for help and ask for answers ;-;
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I don't see the polygon but all you need to do is add up all the sides.
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what is the question I don't understand the question so sorry
You are given 2cos² (4θ - 1). You are asked to s<span>implify the expression by using a double-angle formula.
Apply the double angle of the cosine function
</span>cos2θ = 2cos² θ - 1
Rearranging the expression and then substituting them
2cos² θ = cos2θ + 1
2cos² (4θ - 1) = cos 2(4θ - 1) + 1
cos2(4θ - 1) + 1
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the things wont load whats the question?
Step-by-step explanation:
