corkeoes
corkeoes
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You use cosine to get sides, and inverse-cosine to get angles. Now to cos(pi/4): This problem is in radiants so you need to know that pi in radiants is equal to 180 degrees. Just substitute it in: cos(180/4) which is the same as cos(45). And withou…
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You use cosine to get sides, and inverse-cosine to get angles. Now to cos(pi/4): This problem is in radiants so you need to know that pi in radiants is equal to 180 degrees. Just substitute it in: cos(180/4) which is the same as cos(45). And withou…