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IgorC [24]
3 years ago
11

Study the work shown to find the exact solutions of

Mathematics
1 answer:
Anna35 [415]3 years ago
4 0

Answer:

first and fourth options

x = pi/6

x= 11pi/6

Step-by-step explanation:

cos(30 degrees) = sqrt(3)/2

as pi stands for a half circle of 180 degrees

30 degrees = pi/6

cos(30) = cos(-30) = cos (330) =

cos(pi/6) = cos(-pi/6) = cos(11×pi/6)

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Kitty [74]

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