#How do I solve this trigonometry question?

4 messages · Page 1 of 1 (latest)

raw spade
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I am not sure where to even start. I was able to do in my calculator using the arctan function, however that doesn't provide a surd like format.

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earnest geyser
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ive just tried like 3 different calcs and when you put arctan(2-sqrt3) they all give 15 degrees exactly

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and when youre finding cos15 and sin15 use addition formula

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cos(45-30) and sin(45-30)