-
最佳答案:sin(7π/4) = - sin(π/4) = - √2/2 ≈ - 1.414 /2 ≈ - 0.71sin( -119°45') ≈ - sin( 119
-
最佳答案:sina=0.3286 19°11'1.76''cosa=0.7143 44°24'50.9''tana=0.2936 16°21'44.06''tana=12
-
最佳答案:精度不够,我这个代码在VBA下可以得到0.5Dim pi As Doublepi = 3.14159265358979MsgBox Sin(pi / 6)实际上
-
最佳答案:1)38.86591 3.13564(2)51.30313 80.45048(3)41.39940 86.41024哈有问题欢迎光临小吧有那么一点吧!