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抛物线的中心在原点,焦点与双曲线的右焦点重合,则抛物线的方程为A.B.C.y2=10D.y...
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抛物线的中心在原点,焦点与双曲线
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADsAAAAxCAYAAABkvtHVAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAKASURBVGhD7VqLrcMgDGQydmIdlmEURuFhEv40
/Owm1UulqopCLj58NsaUmX/0Yf+Iq3nJRm9rIzkzjMFXGIUmAyrcawMvPaulMFIfAEpYwlya83KL
NhVuz6hxGWtpOKp3T9OocBvMx8laEQsKsmS4NdtxstYDwmu6p5eZ+1S4O55VEideSxuocFvzPeRZ
LbkReKk42EGF+0lYXbJgEA/yVUYiSZkK9yqCLsm65catsf7Lw1I0E5aVdIlwezZ1PdsD+KX7jixI
Crzn5YpTQMQqKcQ7rKlIhcnKJEfPnoYo5GTkJjLJbkpglp1zlBMZH56IyWgO6ONoJRKy9h2SIK0P
mprFLMgXfYkBsl66SqIkuEFu1bCErF1WeC65VdDsuUD2Xq+CTYGsiyWfQOwvmtpCLog7KJRJXABh
PhMf8j0zKGbGdLsaglzQI+vem9cF9OvsokryYqYsbvLrijeEjiuEvkRWgDpuXVdhS/olsiBdrM5G
T7Ht+4hk67o5kRb6+rVCt0F2Jjb82JFX7+LOPE/u2RHC945BlPG9REbe/pIdmaUfG3MWMj7ufb7s
FBVUnXsq3GunvCcCzfmh6txT4TZITNTG74nAfuZ6TwT257CFMCRjqs49Fe6nqSrI1lXHVuc+7Cvt
JqHYHGzhLjq+arilG969EwE7cYEgTGJs5u3hLjJNe1D2aN12FmvPLkNrnZ3Sk3QuJ407Peu9gEg2
MaRslE/aiDbckY1demyySVn4gA09O+TrJw+b7Il7V4ex0ASLf/3JO3bYjniClLtLD1rAZGc+aKhT
QF8iC7GLc5A9xa6UcX6NF7P+pKHVrN4xeOfZoXJx5wVPevYl+yRvYNryBzYqzgtqGhonAAAAAElF
TkSuQmCC
)
的右焦点重合,则抛物线的方程为( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAAZCAYAAACB6CjhAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAAZCAYAAACB6CjhAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAHcSURBVFhH7ZdNkoMgEIU5lwuO456buOYgbjlI
FhylpxuFgPIjSiQpJ1WpZFKi9Mfr128YPPzFHl4//AM4pAAlgDG2vIU6tORXLiorQEvgtmj6jhC4
1L9SX3GfRQBaKfDL1ZID4zL4rfiUL76gCGC3d2qHJwMgBfRsAedF1pMSn0dFV6kABaLz6ROAlq+q
uykhoPcM6AaApP8NE7APADS+oO/x78/A0CA5y957C0CJNZ94XlCzt2ILmLG3M5p9Kxw1p9wJ2mfl
CgjWYy6RQU8SQA41MaUIoKXhZO+FxQispkoBWod5hIJapUkzJyF/4e2zHk9OULiqbwEfajCibXx3
deEEIyVvAC0KMBE3lI6S96U9JeyzrwCIyd/+RsXHJ9jaAnSBDwClWNNIyPC0BwSGegFAQv6Lr6TH
twfg7b4aT/+ueR9zcYKZSpspE00m1IIvrAA88saMev23t1HAPK7KGl2rxwGk3V9RdN+0t+8bAQCO
J9836oYA5nk2e50GBsP0Mt+jADLyp5FKKjOjNZJf3BhcpNg76iY8wChhUUEMwFb+tq1cG9mJEAkY
bwA3uv6ZbDGiL5AKmkfhI7P3zIZbr3lNA7Bhag+AZQyidRFX70cqaK6Aq5u6e31rAH8791G4YC51
5AAAAABJRU5ErkJggg==
)
C.y
2=10
D.y
2=20
相关试题
-
抛物线的中心在原点,焦点与双曲线
的右焦点重合,则抛物线的方程为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAAZCAYAAACB6CjhAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAHHSURBVFhH7VZLkoQgDM25XHAc99zENQdxy0F6
wVEyBNAmCAI19mB3z6uiVAqCebx8AL8c/wSE59eijQAtEQD8kDpMfgbqBBiFYnOa3i0JQhn//QGo
EmC0xthdowSCUGzundGfAygcvpkAUsDIENhzUWW0opMAjXLw7fc414Iua1pKS8FYDCOApH+HCjiG
AJv4WNzb70vJiPuMSoilBGjJY59Gz79VCXBlLzkA4BgKxzXlwRD3GZRjaM2JB2y/3avYUoNKCOzJ
0W0KeCF6+wxOgOHriMzOJA27hOKNI2s9nd2qgASsRG9htfsR1JX45a25FpdLR6sxBNCFnMVwmYCc
/Lc5cj5fwYI1WhBv1qh6AsnCsd04imD5II/i/oL8fQ4rl++IgCfzxt7++W+8AnRb9T6jRACTf4xK
XgjW6PBAgN0gO2//CmiZyd7rHFQzh4kSAeXsr4mYJLxjMAKEvfkRrS7dHlN+6DPWdXWfywQ4LQ/3
niXgRP5kZ88rwW6M3ZqvBn/f6uYamcN/OCV4FeQISOW/2TxUhNR7iycBg7J+K2brAKkgR8BvANRK
7PF/YzyWCWFaricAThLE3UAquJyA8HwbXEsA4g9yF1SRgKgeaQAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAAZCAYAAACB6CjhAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.y2=10
D.y2=20
-
抛物线的中心在原点,焦点与双曲线
的右焦点重合,则抛物线的方程为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAAZCAYAAACB6CjhAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAAZCAYAAACB6CjhAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.y2=10
D.y2=20
-
已知双曲线的中心在坐标原点,离心率e=2,且它的一个顶点与抛物线y2=-4x的焦点重合,则此双曲线的方程为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADwAAAAqCAYAAADvczj0AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAjFJREFU
aEPtme2RhCAMhr2WbYdOqIMqaIJLorCw6kG4QNxxndkfzgDy5ONNYH8CPMuTHgR+0rM8CZaiWQ/Y
B7sumE7wM8FN2ogasLcmWL9ROgPQqw3761B0NeCCytuwTvLyPYAhoM2jgMHDJsb30IBuFS1ndnGB
XDPy8uLsnPxtU2nMrwhJubaEVdAb3q5hgA0v46Saw965Qj1xg1KKimu9jOeCFTTkFXEV+DARw1ug
hFApohocf2sqUyPTmA1cemXk1saszQSG8sH0buymUp6iDjDXkERnATvT1wJS3mfK1LuOBHgz8L/U
FPP+5WIQJ/nSdmoMqiqlNrQBw4aLUgTvrFKSC52zU8QJGvRdEJnAFI6FmnacbhIwnJAavXv85ruq
l+/n4Y4t6ztwtEQSEhwkfHrZhcplJySJfKyvcQZMs/BsipbgN/HHeppZfmCHVoelg+eJh/eZW+j2
qXD14+DhxkhOS40L6fiJQfXRD1q3auTtauHaww772rcEb1v071ESbWj/Pi6AY43FfKS045ad/h0N
nnkCjLmSamxUbFaRrXj4UNJ6ykuHXfajbNSCiNTWeHR8765TvsB39YzUvuZ6OM8rQZ3gGGMicH6W
3tpXDeZ5wN4Xd2OpBHLcIzB2HnC+2eJ8LEDBWGI6cDpsaMQzGGY6MDljwP12q5N1gIlZ7n67FRbH
qQHTFYxCWCsBb3+GK/BO9HD+h5xSDdYNaU7iCY5VCmlBAuZSX2CmwT5u+C/soOzoTGYvTQAAAABJ
RU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD0AAAAqCAYAAAAAsVPKAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAhpJREFU
aEPtWYutwyAMzFuZddiEOZiCJXg2AQINhFSynQ+NVFVRI/Dh852d/nm4ltkuBD3btcwGODC7D9p5
oxakPny0ty86nS5oZ7Q3bkVqNQBXxsfbx8M/R29nvHpRts+BBnLr6UBDpnXi+uPJfShkGzprmOrZ
6iiUoBlaTiqH9HZGeZZ4UCfSwkEzFq+E2HQIGgFvgVhvCINy1lZugHtJOUQXdLCp4NHpo7KFsZQ1
Ul3IFof0ZgHYWLRmFe+uS6BVUU/XNCJgiUJZ3tpQFBLY1HKJ1iBxVsu2uZHea58tpZ7lGbC5Q9ok
OEOtR7mmkdYs1nSUZRCv6qDhnjSG3Ac0QYMdKaht0h2POZ20pHaImub1b59usr9v74gtdAN0qKlY
1w6+DUFzlC2vFChBWyr6yT1oPM01wXF+PqGiew8vTr1kS6Oe2FraLrE6meZzxc8Nv+vqWOnNC3oT
SAeDC0HlfBmueKbXkgmMv2w8vQi0ggxLdlw1FRqgaeqmz7hV9GQ7rhxNHFkTxqSx7AOHvFqPS54e
dPL7aIGC/c4YbXyCHnSn9TsdkcCDNeiyBu6YIqIDKUCXMy0q3gUDCBGo0TIbaOeqd1aXTF2jaIl+
b9c01uUc9F6PMQ8TM4EOyIXfQxOx9vQyB/9ayr2HPh0t0YN9n35xXXdAF9MR0eneaZkNdPln2os9
Gg+fvg29U0o7sfxAPyBJJCFOmel/gUyKSexLJm4AAAAASUVORK5CYII=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADsAAAAqCAYAAAANryONAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.
-
中心在原点的双曲线C1的一个焦点与抛物线C2:y2=8x的焦点F重合,抛物线C2的准线l与双曲线C1的一个交点为A,且|AF|=5.
(Ⅰ)求双曲线C1的方程;
(Ⅱ)若过点B(0,1)的直线m与双曲线C1相交于不同两点M,N,且
=λ
.
①求直线m的斜率k的变化范围;
②当直线m的斜率不为0时,问在直线y=x上是否存在一定点C,使
⊥(
-λ
)?若存在,求出点C的坐标;若不存在,请说明理由.
-
中心在原点的双曲线C1的一个焦点与抛物线C2:y2=8x的焦点F重合,抛物线C2的准线l与双曲线C1的一个交点为A,且|AF|=5.
(Ⅰ)求双曲线C1的方程;
(Ⅱ)若过点B(0,1)的直线m与双曲线C1相交于不同两点M,N,且
=λ
.
①求直线m的斜率k的变化范围;
②当直线m的斜率不为0时,问在直线y=x上是否存在一定点C,使
⊥(
-λ
)?若存在,求出点C的坐标;若不存在,请说明理由.
-
已知双曲线
中心在原点,右焦点与抛物线y2=16x的焦点重合,则该双曲线的离心率为________.
-
已知双曲线
中心在原点,右焦点与抛物线y2=16x的焦点重合,则该双曲线的离心率为________.
-
已知双曲线
中心在原点,右焦点与抛物线y2=16x的焦点重合,则该双曲线的离心率为________.
-
已知双曲线
(a>0)的中心在原点,右焦点与抛物线y2=16x的焦点重合,则该双曲线的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALdJREFU
OE+9U9EVhDAI663MOmzCHEzRJZCW6ysoracfh8+fvhjSJH5Ep+ymAXZTHgKqEBRBnp8FhkrQ9CwA
lQSJVwxKjSRVn3QFIwjVtjcDMLqdCYCxdGHnF4xSTj7cXDPXEKy8Zbga/zSLNwyZB+Ms8eHNip8b
NcrS90OL3ubrAwu6Q89qgBB5XKoA89+uhuL6eo3bujHaFTRM2i7W9T4JKwrOATuG2fChQX8YcKX1
v92/w1qlegCBfNWPn8LVvwAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALNJREFU
OE+9U8ENBCEI9FqmHTqhDqqwCQ5WvUMWPR+bIzGbmHEYhtmXaJVdGWBX5RhQCaxVO0BS+8vOwILu
0rM2AKMg580UUIWgUxeUiJtEMhoQhIYAsyASX2Jdv2TMWXAO2DEwRg2VBIZB+o3jnlu92skDDJ8N
OqHj7grTcR6eEtlW782aNIzY5QC1HIlXDEqNFtRFi+8GM8AU2ATQcng/0IMZnPwx5vgFlj4cAO4b
+cM23/8S1Y8CDEIRAAAAAElFTkSuQmCC
)
D.
-
已知双曲线
(a>0)的中心在原点,右焦点与抛物线y2=16x的焦点重合,则该双曲线的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALdJREFU
OE+9U9EVhDAI663MOmzCHEzRJZCW6ysoracfh8+fvhjSJH5Ep+ymAXZTHgKqEBRBnp8FhkrQ9CwA
lQSJVwxKjSRVn3QFIwjVtjcDMLqdCYCxdGHnF4xSTj7cXDPXEKy8Zbga/zSLNwyZB+Ms8eHNip8b
NcrS90OL3ubrAwu6Q89qgBB5XKoA89+uhuL6eo3bujHaFTRM2i7W9T4JKwrOATuG2fChQX8YcKX1
v92/w1qlegCBfNWPn8LVvwAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALNJREFU
OE+9U8ENBCEI9FqmHTqhDqqwCQ5WvUMWPR+bIzGbmHEYhtmXaJVdGWBX5RhQCaxVO0BS+8vOwILu
0rM2AKMg580UUIWgUxeUiJtEMhoQhIYAsyASX2Jdv2TMWXAO2DEwRg2VBIZB+o3jnlu92skDDJ8N
OqHj7grTcR6eEtlW782aNIzY5QC1HIlXDEqNFtRFi+8GM8AU2ATQcng/0IMZnPwx5vgFlj4cAO4b
+cM23/8S1Y8CDEIRAAAAAElFTkSuQmCC
)
D.