1.

If \(sin\;x = \frac{4}{5}\) then sec2 x – 1 = ?A. \(\frac{{16}}{{25}}\)B. \(\frac{{25}}{{9}}\)C.\(\frac{{9}}{{16}}\)D. \(\frac{{16}}{{9}}\)

A. A
B. D
C. B
D. C
Answer» C. B


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