sin(a-5π)/tan(3π-a)*cot(π/2-a)/tan(a-3π/2)*cos(8π-a)/sin(-a-4π)
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/01 13:50:06
![sin(a-5π)/tan(3π-a)*cot(π/2-a)/tan(a-3π/2)*cos(8π-a)/sin(-a-4π)](/uploads/image/z/5190399-63-9.jpg?t=sin%28a-5%CF%80%29%2Ftan%283%CF%80-a%29%2Acot%28%CF%80%2F2-a%29%2Ftan%28a-3%CF%80%2F2%29%2Acos%288%CF%80-a%29%2Fsin%28-a-4%CF%80%29)
xO; dY%Pu-
BQa
Rl!z#e_^I&4?UX,BE(6<(I 0u ww4݁7~e p
Ih'Ò);n/6^Wf9߆
sin(a-5π)/tan(3π-a)*cot(π/2-a)/tan(a-3π/2)*cos(8π-a)/sin(-a-4π)
sin(a-5π)/tan(3π-a)*cot(π/2-a)/tan(a-3π/2)*cos(8π-a)/sin(-a-4π)
sin(a-5π)/tan(3π-a)*cot(π/2-a)/tan(a-3π/2)*cos(8π-a)/sin(-a-4π)
sin(a-5π)/tan(3π-a)*cot(π/2-a)/tan(a-3π/2)*cos(8π-a)/sin(-a-4π)
=-sina/-tana*tana/-cota*cosa/-sina
=-sina
dfdg215g4h56f4dg5t4y5yh254