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Math 1112 Activity

Math 1112 Activity . Week #13. 1. Solve the problem. Two boats leave a dock together. Each travels in a straight line. The angle between their courses measures 54°. One boat travels 36.2 kilometers per hour and the other 45.6 kilometers per hour. How far apart will they be after 3 hours?.

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Math 1112 Activity

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  1. Math 1112 Activity Week #13

  2. 1. Solve the problem • Two boats leave a dock together. Each travels in a straight line. The angle between their courses measures 54°. One boat travels 36.2 kilometers per hour and the other 45.6 kilometers per hour. How far apart will they be after 3 hours?

  3. 2. Write in trig form: • A. -1 + i (Use degrees) • B. 4i (Use radians)

  4. 3. Write in standard a + bi form: • A. 5(cos 150° + isin 150°) • B. 3(cos 2π + isin 2π)

  5. 4. Convert to decimal degree notation: • 53° 44ˊˊ

  6. 5. Find the exact value:

  7. 6. Multiply & Simplify: • (1 – cos x)(1 + cos x)

  8. 7. Find exact value: • sin 185°cos65° - cos185°sin65°

  9. 8. Find sec θ • Given: and the terminal side is in quadrant II

  10. 9. Find sin2θ • Given: with θ in quadrant III

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