4 9. Given that cos 0 what is sin 20 , if 0 < 0 < ? 2 16 12 а. с. 25 25 9. 24 b. d. 25 25 10. Which of the following functions has the longest period? 7x +3 4 (3x` а. у %3D 3 sin ) – 17 y = 5 sin с. (4x° ) – b. y = = 10 cos 4. 12 d. у%3D 2 сos 3 - 1

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A:

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A:

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A: Please check the solution in next step. I have given graphical representation also