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Use a sum or difference formula to find the exact value of the following. cos Sin COS
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Use a sum or difference formula to find the exact value of the following. cos Sin COS

Use a sum or difference formula to find the exact value of the following. cos Sin-example-1
User Kerbie
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sin (2pi/3) = sin(2pi/6)
Use a sum or difference formula to find the exact value of the following. cos Sin-example-1
User Tasos Papastylianou
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