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If sin θ = 11/61, find the value of cos θ using trigonometric identity.

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If sin θ = 11/61, find the value of cos θ using trigonometric identity.

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sin θ = 11/61 … [Given] 

We know that, 

sin2 θ + cos2 θ = 1 

∴ cosθ = 60/61  …[Taking square root of both sides]

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