Calculate all the values of x between -180° and +180° which satisfy the equation 6 cos (x - 30)° = -3.

      

Calculate all the values of x between -180° and +180° which satisfy the equation 6 cos (x − 30)° = −3.

  

Answers

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Cos (x – 30)⁰ = -0.5 ?Cos (x -30) = Cos 120
x -30 = 120
x = 150⁰

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Kavungya answered the question on November 12, 2019 at 12:19

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