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15-03-2020
Mathematics

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Solve the equation cos 3theta=1/2, for theta is R, (where theta is in radians)

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amna04352 amna04352

15-03-2020

Answer:

pi/9, 5pi/9

Step-by-step explanation:

Cos(3theta) = ½

3theta = pi/3, 5pi/3

theta = pi/9, 5pi/9

Keep on adding 2pi/3 to each to get more angles, if required

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