Respuesta :

HomertheGenius
5π/12 = (5 · 180°) : 12 = 75°
cos 75° = cos ( 45° + 30° )= cos 45° cos 30° - sin 45° sin 30° =
=√2/2 * √3/2 - √2/2 * 1/2 = [tex] \frac{ \sqrt{6} }{4} - \frac{ \sqrt{2} }{4}= \frac{ \sqrt{6} - \sqrt{2} }{4} [/tex]
=(2.4495 - 1.4142): 4 = 0.258825
puffpuff415
Square root of 2(square root of 3-1)/4. Honestly apex is trying to mess you up lol

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