If sin21° = $$\frac{x}{y}{\text{,}}$$ then sec21°

Question

If sin21° = $$\frac{x}{y}{\text{,}}$$ then sec21° - sin69° is equal to?

Options:

A . $$\frac{{{x^2}}}{{y\sqrt {{y^2} - {x^2}} }}$$

B . $$\frac{{{y^2}}}{{x\sqrt {{y^2} - {x^2}} }}$$

C . $$\frac{{{x^2}}}{{y\sqrt {{x^2} - {y^2}} }}$$

D . $$\frac{{{y^2}}}{{x\sqrt {{x^2} - {y^2}} }}$$

Answer: Option A

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