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The answers are on the 5th picture Page K 1 of 5 Simplify each expression. 3. cos (280) -sin-(289) 4. 1-2sin(179) 5. cos? (9x) -

The answers are on the 5th picture

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Page K 1 of 5 Simplify each expression. 3. cos (280) -sin-(289) 4. 1-2sin(179) 5. cos? (9x) - sin (9x) 61 4sin (8x) cos(8x)Use a double angle, half angle, or power reduction formula to rewrite without exponents. 7. cos (5x) 8. sin (8.) 9. cos xsin r 10. If ese (x) = 7 and 909

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