X ^ 2/3 + Y ^ 2/4 = 1的一个焦点到离它较远的准线的距离是?
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/02 08:05:31
![X ^ 2/3 + Y ^ 2/4 = 1的一个焦点到离它较远的准线的距离是?](/uploads/image/z/14061406-22-6.jpg?t=X+%5E+2%2F3+%2B+Y+%5E+2%2F4+%3D+1%E7%9A%84%E4%B8%80%E4%B8%AA%E7%84%A6%E7%82%B9%E5%88%B0%E7%A6%BB%E5%AE%83%E8%BE%83%E8%BF%9C%E7%9A%84%E5%87%86%E7%BA%BF%E7%9A%84%E8%B7%9D%E7%A6%BB%E6%98%AF%3F)
xNP_w6`kIuondGZ"(1DciELjTޥ-Ewn;s7ʚz̴^dX$FalQHw/(џ-H5Uv:
DR#y:]|oL -Ъt uHwmLax䕋1^c{P#>p4N*/
omY$i 6]^>G>
r>ӝoe#aAoD#XfWkVFAA:j,6
X ^ 2/3 + Y ^ 2/4 = 1的一个焦点到离它较远的准线的距离是?
X ^ 2/3 + Y ^ 2/4 = 1的一个焦点到离它较远的准线的距离是?
X ^ 2/3 + Y ^ 2/4 = 1的一个焦点到离它较远的准线的距离是?
y^2/4+x^2/3=1
4>3
焦点在y轴
焦点是(0,1),(0,-1)
准线是y=a^2/c=4
焦点到离它较远的准线的距离
=1+4
=5
如果你认可我的回答,请点击“采纳为满意答案”,祝学习进步!
手机提问的朋友在客户端右上角评价点【满意】即可
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
2(x+y)-3(x-y)=3 ,4(x+y)+3(x-y)=15
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2
(x+y)/2- x-y/2=6 3(x+y)=4(x-y)
x+y/3+x-y/2=6 4(x+y)-2(x-y)=40
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20
4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6
3(x+y)-2(x-y)=11 4(x+y)+3(x-y)=9
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
先化简再求值(x-y)(x-2y)+(x-2y)(x-3y)-2(x-3y)(x-4y) x=4 y=5
已知2y-x=-3,求[4y(2x-y)-2x(2x-y)]/(2x-y
x+y+2(-x-y+1)=3(1-y-x)-4-(y+x-1),x+y=?
先化简 再求值 (2x-y)(y+x)-(x-2y)(2y+x)-(-3y+x)^2其(√x+1)+y^2+4=-4y
化简[(3x+4y)^2-(2x+y)(2x-y)+(-x+y)(5x-y)]除以-2y,其中x=-1,y=1
已知x-y=1,求[(x+2y)^2+(2x+y)(x-4y)-3(x+y)(x-y)]除以y的值大神们帮帮忙