if sin theta=√3/2,cos theta =-1/2,then theta lies in
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Theta is 60 degree
it lies in 1st quadrant
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Sin theta=√3/2
From here we here theta = 60°
Cos theta =-1/2
From here we get theta = 120
therefore,
Theta = 60 ≦ θ ≧ 120
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