60X-X-90=180
1个回答
60X-X-90=180
59X=180+90
59X=270
X=270/59
相关问题
90/X+180=60/X-180
90(x-180)=60(x+180) 求x
1) 化简 tan60°sin(180°-x)+cos30°cos(90°+x) .
解方程:180-X+(90-X)=180
计算:180-x=5(90-x)
180-X÷90-X=3
(90°-x)+(180°-x)过程,急.
90-(180-x)=0.4x
函数y=sin(2x-60°)在区间【90°~180°】的简图是
90-x+180-x=136的答案