If tan θ = a/x , then the value of x/√(a^2+x^2 ) is : a. sin θ b. sec θc. cos θ d. cosec θ

If tan θ = a/x , then the value of x/√(a^2+x^2 ) is : a. sin θ b. sec θc. cos θ d. cosec θ

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