= −135 ⋅ π 43. = − ⋅ π radian 3π radians 60. 73°= 73 −135° radian 180 4 = 73π radians = − 225 ⋅ π 44. 180 = − radian 5π radians − 225° 180 4 ≈ 1.27 radians = − ⋅ π 40 − 90° = − 90 ⋅ radian = − π radians 45. − π radian 40° 61. 180 2 180 2π radian ° = ⋅ π 46. =− 180 9 radian = −π ≈ − 0.70 radian radians −180 47. π = π ⋅ 180 degrees = 60° π π 3 3 = − 51⋅ − 62. 51° 180 = ⋅ = 48. 5π 5π 180 degrees 150° 17π radian 6 6 π ≈ − 0.89 radian 60 49. − 5π = − 5π ⋅ 180 degrees = − 225° 4 4 π π 180 63. 125°= 125 ⋅ = − ⋅ = −120° 2π 180 degrees 50. 25π − 2π 3 3 π = radians 36 51. π = π ⋅ 180 degrees = 90°
43. −135° = −135 ⋅ π radian = − 3π radians 60. 73°= 73 ⋅ π radian 180 4 = 73π radians 44. − 225° = − 225 ⋅ π radian = − 5π radians 180 180 4 ≈ 1.27 radians 45. − 90° = − 90 ⋅ π radian = − π radians 61. − 40° = − 40 ⋅ π radian 180 2 180 2π radian 46. = −180 ⋅ π 180 radian = −π radians =− 9 ≈ − 0.70 radian 47. π = π ⋅ 180 degrees = 60° π 3 3 π 62. − 51° = − 51⋅ 180 48. 5π = 5π ⋅ 180 degrees = 150° 17π radian 6 6 π 60 ≈ − 0.89 radian 49. − 5π = − 5π ⋅ 180 degrees = − 225° 4 4 π 63. 125°= 125 ⋅ π 180 50. − 2π = − 2π ⋅ 180 degrees = −120° 25π 3 3 π = radians 36 51. π = π ⋅ 180 degrees = 90° °
62514-0132318806_ISM_02-1.docx