Exercises 10.1, page 302

  1. 1. y = 3 cos x

    A curve oscillates about y = 0 with amplitude 3, period 2 pi, and maximum (0, 3).

  2. 3. 0,  − 0.7 ,   − 1 ,   − 0.7 ,  0, 0.7, 1, 0.7, 0,  − 0.7 ,   − 1 ,   − 0.7 ,  0, 0.7, 1, 0.7, 0

    A curve oscillates about y = 0 with amplitude 1, local maximum (pi over 2, 1), and period 2 pi.

  3. 5. 3, 2.1, 0,  − 2.1 ,   − 3 ,   − 2.1 ,  0, 2.1, 3, 2.1, 0,  − 2.1 ,   − 3 ,   − 2.1 ,  0, 2.1, 3

    A curve oscillates about y = 0 with amplitude 3, local maximum (pi, 3), and period 2 pi.

  4. 7. Amplitude  = 3

    A curve oscillates about y = 0 with amplitude 3, local maximum (pi over 2, 3), and period 2 pi.

  5. 9. Amplitude  = 52

  6. 11. Amplitude  = 200

  7. 13. Amplitude  = 0.8

  8. 15. Amplitude  ...

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