SOLUTION: Solve the following equations given that 0° &#8804; &#952; < 360° : A) cos &#952; = -((sqrt3)/2) B) sin &#952;/2 - 1/2 = 0

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Question 966763: Solve the following equations given that 0° ≤ θ < 360° :
A) cos θ = -((sqrt3)/2)
B) sin θ/2 - 1/2 = 0

Answer by ikleyn(52811)   (Show Source): You can put this solution on YOUR website!

A)  If   =   then    = 150°   or    = 210°,   providing that  0° < < 360°.


B)  If   = 0   then    = .

      It implies that   = 30°  or   = 150°.   Hence,   = 60°  and  = 2*150° = 300°  satisfies the given equation,  providing that  0° < < 360°.


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