3 years ago

Trig: Use a half angle formula to find the exact value of the expression? cos(5pi/12)

1 answer:

4 0

I believe that the correct answer would be 0.999739299
5 * 3.14 = 15.7
15.7/12 = 1.308333333
cos(1.308333333)
0.999739299

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