SOLUTION: cos((5π)/(18))cos((π)/(9))+sin((5π)/(18))sin((π)/(9))

SOLUTION: cos((5π)/(18))cos((π)/(9))+sin((5π)/(18))sin((π)/(9))

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Question 476567: cos((5π)/(18))cos((π)/(9))+sin((5π)/(18))sin((π)/(9))
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!

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