3 years ago

Cos36.cos72.cos108.cos144

1 answer:

6 0

Cos36 = 0.84
Cos72 = 0.43
Cos108 = -0.13
Cos144 = -0.64

Cos36xCos72xCos108xCos144 = 0.84 x 0.43 x (-0.13) x (-0.64)= 0.03

Hope that it helps :)

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