Question

0度，37度，53度，90度的三角函数是多少？？

Answer 1

sin0=0tan0=0cos0=0
sin37=o.601815023
tan37=0.75355405
cos37=0.79863551
sin53=0.79863551
tan53=1.327044822
cos53=0.601815023
sin90=1
tan90=错误
cos90=0

Answer 2

sin:0 ,0.6, 0.8, 1.0
cos :1.0,0.8,0.6,0
tan:0,0.75,4/3,无穷大
cot:无穷大，4/3,0.75,0