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# Write the product as a sum: cos(9x) cos(5x) Write the sum as a product: sin(x) − sin(6x)?

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• Write the product as a sum: cos(9x) cos(5x) Write the sum as a product: sin(x) − sin(6x)?

## Answers

Write the product as a sum. Sin 5x cos 6x Write the product as a sum. Cos x sin 6x Write the product as a ... Write the sum as a product. Sin 4x ? sin 9x .
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Positive: 61 %
Rewrite the following sum as a product. cos 7x + cos 5x? ... => cos(6x + x) + cos(6x - x) => cos(6x)cos(x) - sin(6x)sin(x) + cos(6x)cos(x) + sin(6x)sin(x ...
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Positive: 58 %

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Trigonometric equations. Main methods for solving. ... sin x + cos x = 1 . ... Transforming a product to a sum.
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Positive: 61 %
Multi Choice Problems. ... Express the sum or difference as a product. sin 4x - sin 6x. A. 2 cos 4x cos 5x B. 2 sin 5x cos x C. -2 sin x cos 5x ...
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Positive: 56 %
... 1 - sin x 10) Use a graphing ... Write the product as a sum or difference of trigonometric functions. 42) ... 2 cos 6x cos 3x A) sin 9x + sin 3x B) ...
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Positive: 42 %
Trigonometric Identities and Formulas. ... / 2 ] sin[ (X - Y) / 2 ] Product to Sum/Difference Formulas ... (5/16)cos(3X) + (1/16)cos(5X) sin 6 X = 5/16 ...
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Positive: 19 %

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