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Question Number 31808 by Abadon last updated on 15/Mar/18

$$\mathrm{The}\mathrm{numeric}\mathrm{value}\mathrm{of}\mathrm{the}\mathrm{expression}\mathrm{is}:$$$$$$$$\frac{\mathrm{Sec}1320°}{2}-2\cdot \cos \left(\frac{53\pi }{3}\right)+{\left(\mathrm{tg}2220°\right)}^2$$

Commented by Tinkutara last updated on 15/Mar/18

1

Commented by MJS last updated on 15/Mar/18

$$1320°=-120°$$$$\frac{53\pi }{3}=-60°$$$$2220°=60°$$$$1-1+3=3$$

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