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If $θ$ = 120º , then

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a

sin⁡θ=32

b

cos⁡θ=12

c

cot⁡θ=12

d

tan⁡θ=3

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detailed solution

Correct option is A

sin⁡120=sin 180-60°=sin 60=32 ∵Sine is positive in II quadrant cos⁡120=cos 180-60°=-cos 60=-12 ∵cosine is negative in II quadrant cot⁡120=cot 180-60°=-cot 60=-13 ∵cot is negative in II quadrant tan⁡120=tan 180-60°=-tan 60=-3 ∵tan is negative in II quadrant

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Similar Questions

Which of the following values are positive?

$(a) \cos 120 °$

$(b) \sin 210 °$

$(c) \tan 240 °$

$(d) \cos 315 °$

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