1.

If sin θ=-45 and θ lies in third quadrant, then the value of cosθ2 is(a) 15(b) -110(c) -15(d) 110

Answer» If sin θ=-45 and θ lies in third quadrant, then the value of cosθ2 is

(a) 15



(b) -110



(c) -15



(d) 110


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