Quizlet 3 and 4 test calculus

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  1. 3-4-5 triangle: 37/53/90 angles
  2. cos 60: .5
  3. hypotenuse must be ...: bigger than biggest one and samller then the sum
  4. largest sum of vectors: must be in same direction, add them
  5. perpinicular vectors: pythagorean therum
  6. sin 30: .5
  7. sin 45: cos 45 = .71
  8. smallest sum of vectors: must be in opposite directions, subtract them
  9. x is greater than y: small theta
  10. x= half hypotenuse: theta is 60 and x is betweeen half y and 2/3 y
  11. y = half hypotenuse: theta is 30 y between half x and 2/3 x
  12. y is greater than x: large angle