第四章:部分分式 Partial Fraction

第六章:角的形成及单位 Angles and Measurements

6.1 Angle 角 – 练习题
1. Convert the following degree to radians, leaving ^{\circ} in your answer
将下列各度化为弧度(以π表示)
(a) 160^{\circ}
(b) 78^{\circ}
(c) 15^{\circ}
(d) 140^{\circ}
(e) 630^{\circ}
(f) 750^{\circ}
2. Convert the following radian to degree, give your answer correct to minute.
将下列各弧度化为度(准确到分)

(a) \frac{4}{9}\pi

(b) 1\frac{1}{2}\pi

(c) 0.7

(d) \frac{13}{4}\pi

(e) \frac{11}{3}\pi

(f) \frac{5}{6}\pi

Answer 答案:

1
(a) \frac{8}{9}\pi
(b) \frac{13}{30}\pi
(c) \frac{1}{12}\pi
(d) \frac{7}{9}\pi
(e) \frac{7}{2}\pi
(f) \frac{25}{6}\pi

2
(a) 80^{\circ}
(b) 270^{\circ}
(c) 40^{\circ}6’
(d) 585^{\circ}
(e) 660^{\circ}
(f) 150^{\circ}