sin15.30.45.60.75.90.105.120.135.150.165.180 cos15…90… ten15.30…各等于几分之几.帮个忙!
来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/23 05:00:27
sin15.30.45.60.75.90.105.120.135.150.165.180cos15…90…ten15.30…各等于几分之几.帮个忙!sin15.30.45.60.75.90.105.1
sin15.30.45.60.75.90.105.120.135.150.165.180 cos15…90… ten15.30…各等于几分之几.帮个忙!
sin15.30.45.60.75.90.105.120.135.150.165.180 cos15…90… ten15.30…各等于几分之几.
帮个忙!
sin15.30.45.60.75.90.105.120.135.150.165.180 cos15…90… ten15.30…各等于几分之几.帮个忙!
sin0° = sin180°= 0
sin15°= sin165°= (√6-√2)/4
sin18°= sin162°= (√5-1)/4
sin30°= sin150°= 1/2
sin45°= sin135°= √2/2
sin60°= sin120°= √3/2
sin75°= sin105°= (√6+√2)/4
sin90°= 1
sin15.30.45.60.75.90.105.120.135.150.165.180 cos15…90… ten15.30…各等于几分之几.帮个忙!
sin75 -sin15
sin15°
(cos15-sin15)/(cos15+sin15)要过程!
sin15和sin15°的区别
sin15等于多少sin15度 等于 多少
(cos15+sin15)(cos15-sin15) 等于多少阿?
sin15度-cos15度
sin15°怎么算
sin15度cos15度化简
如图 求sin15
sin15度等于多少
sin15度怎么求
怎样计算Sin15
sin15度,怎么求
sin15度得多少
Sin15度等于多少
sin15度等于几?