请问 sin(pi),sin(pi/2)这样的数是等于多少啊?请问 sin(pi),sin(pi/2),sin(pi/4),cos(pi),cos(pi/2),cos(pi/4),tan.cot...sec...csc等各为多少啊?sin和cos的我已经找到了,我就是需要直接的值,我要会推就不问了.懂的大
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![请问 sin(pi),sin(pi/2)这样的数是等于多少啊?请问 sin(pi),sin(pi/2),sin(pi/4),cos(pi),cos(pi/2),cos(pi/4),tan.cot...sec...csc等各为多少啊?sin和cos的我已经找到了,我就是需要直接的值,我要会推就不问了.懂的大](/uploads/image/z/8851338-18-8.jpg?t=%E8%AF%B7%E9%97%AE+sin%28pi%29%2Csin%28pi%2F2%29%E8%BF%99%E6%A0%B7%E7%9A%84%E6%95%B0%E6%98%AF%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%E5%95%8A%3F%E8%AF%B7%E9%97%AE+sin%28pi%29%2Csin%28pi%2F2%29%2Csin%28pi%2F4%29%2Ccos%28pi%29%2Ccos%28pi%2F2%29%2Ccos%28pi%2F4%29%2Ctan.cot...sec...csc%E7%AD%89%E5%90%84%E4%B8%BA%E5%A4%9A%E5%B0%91%E5%95%8A%3Fsin%E5%92%8Ccos%E7%9A%84%E6%88%91%E5%B7%B2%E7%BB%8F%E6%89%BE%E5%88%B0%E4%BA%86%2C%E6%88%91%E5%B0%B1%E6%98%AF%E9%9C%80%E8%A6%81%E7%9B%B4%E6%8E%A5%E7%9A%84%E5%80%BC%2C%E6%88%91%E8%A6%81%E4%BC%9A%E6%8E%A8%E5%B0%B1%E4%B8%8D%E9%97%AE%E4%BA%86.%E6%87%82%E7%9A%84%E5%A4%A7)
请问 sin(pi),sin(pi/2)这样的数是等于多少啊?请问 sin(pi),sin(pi/2),sin(pi/4),cos(pi),cos(pi/2),cos(pi/4),tan.cot...sec...csc等各为多少啊?sin和cos的我已经找到了,我就是需要直接的值,我要会推就不问了.懂的大
请问 sin(pi),sin(pi/2)这样的数是等于多少啊?
请问 sin(pi),sin(pi/2),sin(pi/4),cos(pi),cos(pi/2),cos(pi/4),tan.cot...sec...csc等各为多少啊?
sin和cos的我已经找到了,我就是需要直接的值,我要会推就不问了.懂的大哥请回答一下,格式如下.
tanpi=x tan(pi/2)=x tan(pi/4)=x
cot...
sec...
csc...
请问 sin(pi),sin(pi/2)这样的数是等于多少啊?请问 sin(pi),sin(pi/2),sin(pi/4),cos(pi),cos(pi/2),cos(pi/4),tan.cot...sec...csc等各为多少啊?sin和cos的我已经找到了,我就是需要直接的值,我要会推就不问了.懂的大
sin(pi)=sin(180°)=0,
sin(pi/2)=sin(90°)=1,
sin(pi/4))=sin(45°)=(根号2)/2=0.707,
cos(pi)=cos(180°)=-1,
cos(pi/2)=cos(90°)=0,
cos(pi/4))=cos(45°)=(根号2)/2=0.707,
tan(pi)=tan(180°)=0,
tan(pi/2)=tan(90°)=无穷大,
tan(pi/4))=tan(45°)=1,
cot(pi)=cot(180°)=无穷大,
cot(pi/2)=cot(90°)=0,
cot(pi/4))=cot(45°)=1,
sec(pi)=sec(180°)=-1,
sec(pi/2)=sec(90°)=0,
sec(pi/4))=sec(45°)=(根号2)/2=0.707,
csc(pi)=csc(180°)=0,
csc(pi/2)=csc(90°)=1,
csc(pi/4))=csc(45°)=(根号2)/2=0.707,