写出下列各角终边相同的角的集合,并把集合中适合不等式-360°＜β＜720°的元素β写出来
写出下列各角终边相同的角的集合,并把集合中适合不等式-360°＜β＜720°的元素β写出来
（1）70°
（2）-53°
（3）480°16′
（1）70°
（2）-53°
（3）480°16′
数学人气：304 ℃时间：2019-11-25 19:29:32
优质解答
（1）-360°＜2nπ+70°＜720 （n不等于0） 解得n= -1,1 β= -290°,430°（2）-360°＜2nπ+-53°＜720（n不等于0） 解得n= -1,1 β= -307°,413°（3）-360°＜2nπ+480°16′＜720（n不等于0） 解得n= -1,-2 β=2...
我来回答
类似推荐
猜你喜欢
- 1There were a lot of trees here,but now there aren't any改为同意句
- 2Actually one could see where that might be a good trade for them.
- 3短文两篇课后题行道树和第一次真好
- 4We are ( ) the teacher.A listen B listening to C listen to
- 5—Where are going,Sam?—I’m going to the park.的合并句
- 6八年级英语第六单元 They are fast _______out of money. A.run B.to run C.running D.ran
- 7鸡的孵化期是21天，鸭的孵化期比鸡长1/3，鸭的孵化期是多少天？
- 8Alan is very humourous ang always makes his friends happy(同义句)
- 9初一英语的主语谓语宾语是什么?
- 10请写出5个小于七分之一而大于八分之一的分数