1.

If `sec theta-tan theta=x` and `sectheta+tan theta=1/x` then sinf `sin theta` and `cos theta`A. `(1+x^(2))/(1-x^(2))`B. `(1-x^(2))/(1+x^(2))`C. `x^(2) + (1)/(x^(2))`D. `(1-x^(2))/(1+x^(2))`

Answer» Correct Answer - D


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