UC知道关于cos。sin。tan的问题
来源：百度知道 编辑：UC知道 时间：2024/06/16 23:52:01
cos0.30.45.60.90.120.135.150.180.210.225.240.270.300.315.330
tan0.30.45.60.90.120.135.150.180.210.225.240.270.300.315.330
非常感谢wenabby
不过我问的都是特殊角。用分式或根号表示。。比如。sin30=1/2.sin60=(根号3)/2
按顺序
sin:0,0.5,根号2/2,根号3/2,1,根号3/2,根号2/2,0.5,0,-0.5,-根号2/2,-根号3/2,-1,-0.5,-根号2/2,-根号3/2
cos:1,根号3/2,根号2/2,0.5,0,-0.5,-根号2/2,-根号3/2,-1,-根号3/2,-根号2/2,-0.5,0,0.5,根号2/2,根号3/2
tan:0,根号3/3,1,根号3,不存在,-根号3/3,-1,-根号3,0,根号3/3,1,根号3,不存在,-根号3,-1,-根号3/3
用计算器啊
对了可疑用逗号隔开吗
sin5° = 0.0871557427476582; cos5° = 0.996194698091746;
tan5° = 0.087488663525924; cot5° = 11.4300523027613;
sin10° = 0.17364817766693; cos10° = 0.984807753012208;
tan10° = 0.176326980708465; cot10° = 5.67128181961771;
sin15° = 0.258819045102521; cos15° = 0.965925826289068;
tan15° = 0.267949192431123; cot15° = 3.73205080756888;
sin20° = 0.342020143325669; cos20° = 0.939692620785908;
tan20° = 0.363970234266202; cot20° = 2.74747741945462;
sin25° = 0.422618261740699; cos25° = 0.90630778703665;
tan25° = 0.466307658154999; cot25° = 2.14450692050956;
sin30° = 0.5; cos30° = 0.866025403784439;
tan30° = 0.577350269189626; cot30° = 1.73205080756888