1200除以X减去1200除以1.5X等于10
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![1200除以X减去1200除以1.5X等于10](/uploads/image/f/69817-49-7.jpg?t=1200%E9%99%A4%E4%BB%A5X%E5%87%8F%E5%8E%BB1200%E9%99%A4%E4%BB%A51.5X%E7%AD%89%E4%BA%8E10)
x/(y-x)
x²/25-y²/16=1a=5,b=4,c=√41e=c/a=(√41)/5焦点坐标(√41,0),(-√41,0)顶点坐标(5,0),(-5,0)x²/5-y
图再问:对么再答:对再问:◥◤~~~~◥◤ ┃ ┃≡━﹏━≡ ┗━━┳∞┳━━┛ ┏┫ ┣┓再答:谢谢采纳再答:Thankyou
x/(x-1)-2x-2/x=x²/x(x-1)-2x²(x-1)/x(x-1)-2(x-1)/x(x-1)=(-2x³+3x²-2x+2)/x(x-1)
90/X-90/3X=3270/3X-90/3X=3160/3X=3180=9XX=20再问:请再帮帮忙吧:解方程2.4∕5X-2.4∕6X﹦1.6再答:2.4∕5X-2.4∕6X﹦1.614.4/X
[(56-x)/4]^2-[(x/4)^2]=100方程同时*4^2得(56-x)^2-x^2=1600打开平方项x=1536/112=96/7=13.7
c=√(a²+b²)e1=c/a,e2=c/be1+e2=c*(1/a+1/b)=c(a+b)/(ab)(e1+e2)²=c²*(a+b)²/(a
4x/(2x-1)-(x+1)/(x-2)=1先通分[4x(x-2)-(x+1)(2x-1)]/[(2x-1)(x-2)]=14x2-8x-(2x2+x-1)=2x2-5x+2x=-1/4其中x2代表
(5x-1200)/(4x-1000)=13/105x-1200=13(4x-1000)/105x-1200=26x/5-1300-x/5=-100x=500
是不是X除以3减去4等于x除以4减去1X*1/3-4=X*1/4-1X/3-4=X/4-1X/3-X/4=34X-3X=36X=36
x=(√20-4)/2=(2√5-4)/2=√5-2所以x²=(√5)²-4*√5+4=9-4√51/x=1/(√5-2)=(√5+2)/[(√5)²-2²]=
就是(x/200)-(x/250)=15两边同乘以10005x+4x=15000x=15000
/>x/1500+x/1200=64x/6000+5x/6000=69x/6000=69x=6×60009x=36000x=36000÷9x=4000再问:非常正确,谢谢你,可我就是看不懂,笨啊,你能
1200除以60减去40的差,商是601200/(60-40)
x^2+1/x^2-1减去x-2/x-1除以x-2/x=(x²+1)/(x²-1)-(x-2)/(x-1)÷(x-2)/x=(x²+1)/(x²-1)-x/(x
75-6.5/x=656.5x=75-656.5/x=1010x=6.5x=0.65