Use the appropriate angle-sum formula to simplify the following expression: cos(2π)cos(π/6)−sin(2π)sin(π/6)

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answerhappygod
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Use the appropriate angle-sum formula to simplify the following expression: cos(2π)cos(π/6)−sin(2π)sin(π/6)

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Use the appropriate angle-sum formula to simplify the followingexpression: cos(2π)cos(π/6)−sin(2π)sin(π/6)
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