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If sinθ = 1/3, then cosθ will be —

(A) ± 8/9

(B) ± 4/3

(C) ± 2√2/3

(D) ±3/4
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Best Answer

cosθ = √1– sin2θ

= √1 –1/9

= ±2√2/3

So, The correct option of this question is (C)

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