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Mathematics, 01.08.2019 05:00 hsbhxsb

What is the exact value of the trigonometric expression in simplest form? 2 cos(3Ο€/4)βˆ’4 sin(7Ο€/6)

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What is the exact value of the trigonometric expression in simplest form? 2 cos(3Ο€/4)βˆ’4 sin(7Ο€/6)...
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