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Solution
Expression : sec -2π/3
$$\because sec(-x) = sec(x)$$
=> $$sec(\frac{-2\pi}{3}) = sec(\frac{2\pi}{3})$$
= $$sec(\pi-\frac{\pi}{3}) = -sec(\frac{\pi}{3})$$
= $$-2$$
=> Ans - (A)
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