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If $tanθ = \frac{1}{\sqrt{5}}$ and $θ$ lies in the first quadrant, the value of cos $θ$ is :

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Correct option is A

cosθ = 56 = 56

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If tanθ = 15 and θ lies in the first quadrant, the value of cos θ is :

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If $tanθ = \frac{1}{\sqrt{5}}$ and $θ$ lies in the first quadrant, the value of cos $θ$ is :