If θ is positive acute angle and 3(sec2θ + tan2θ) = 5, then the value of cos2θ is? Options: A . &nbsp$$\frac{1}{2}$$ B . &nbsp$$\frac{{\sqrt 3 }}{2}$$ C . &nbsp$$\frac{1}{{\sqrt 2 }}$$ D . &nbsp1

If θ is positive acute angle and 3(sec2θ + tan2θ) = 5, then the value of cos2

Question

If θ is positive acute angle and 3(sec2θ + tan2θ) = 5, then the value of cos2θ is?

Options:

A . $$\frac{1}{2}$$

B . $$\frac{{\sqrt 3 }}{2}$$

C . $$\frac{1}{{\sqrt 2 }}$$

D . 1

Answer: Option A

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