SOLUTION: Given 0≤θ≤360 and cos θ = −1/√2. There are two possible values of θ. State the first and second value of 0.

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Question 1182270: Given 0≤θ≤360 and cos θ = −1/√2. There are two possible values of θ. State the first and second value of 0.
Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
.

    theta = 135°  in  QII;


    theta = 225°  in  QIII.

Solved.