收录高三寒假作业06新题

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weiye.wang 2024-01-24 20:26:38 +08:00
parent 1021d879c8
commit 3fa6475787
2 changed files with 155 additions and 7 deletions

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20240124-194256
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20240124-202600
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@ -639881,6 +639895,137 @@
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"023683": {
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"content": "若直线 $l_1: x+m y+6=0$ 和 $l_2:(m-2) x+3 y+2 m=0$, 则当且仅当 $m \\in$\\blank{50}时, $l_1$ 与 $l_2$ 相交; 当且仅当 $m \\in$\\blank{50}时, $l_1$ 与 $l_2$ 平行.",
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"genre": "填空题",
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"duration": -1,
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"origin": "自拟题目",
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"20240124\t毛培菁"
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"023684": {
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"content": "(1) 若直线 $l_1: 2 x+y-3=0$, $l_2: 3 x-2 y-4=0$, 则 $l_1$ 与 $l_2$ 的夹角为\\blank{50}.\\\\\n(2) 若平行直线 $l_1: 2 x+y-1=0$, $l_2: 2 x+y+1=0$, 则 $l_1$、$l_2$ 的距离为\\blank{50}.",
"objs": [],
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"genre": "填空题",
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"origin": "自拟题目",
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"023685": {
"id": "023685",
"content": "(1) 过点 $P(1,1)$ 且与直线 $\\sqrt{3}x+y+1=0$ 的夹角为 $60^{\\circ}$ 的直线方程是\\blank{50}.\\\\\n(2) 若三条直线 $4 x+y+4=0$、$m x+y+1=0$、$x-y+1=0$ 不能围成三角形, 则 $m$ 的值为\\blank{50}.",
"objs": [],
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"023686": {
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"content": "若 $0 \\leq \\theta \\leq \\dfrac{\\pi}{2}$, 当点 $(1, \\cos \\theta)$ 到直线 $x \\sin \\theta+y \\cos \\theta-1=0$ 的距离是 $\\dfrac{1}{4}$, 则直线的倾斜角为\\blank{50}.",
"objs": [],
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"genre": "填空题",
"ans": "",
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"duration": -1,
"usages": [],
"origin": "自拟题目",
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"023687": {
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"content": "设直线 $l$ 过点 $A(2,4)$, 它被两平行线 $x-y+1=0$ 和 $x-y-1=0$ 所截得的线段的中点在直线 $x+2 y-3=0$ 上, 则直线 $l$ 的方程是\\blank{50}.",
"objs": [],
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"genre": "填空题",
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"duration": -1,
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"origin": "自拟题目",
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"023688": {
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"content": "求经过点 $A(2,3)$, 且被两平行线 $3 x+4 y-7=0$ 和 $3 x+4 y+8=0$ 截得长为 $3 \\sqrt{2}$ 的线段所在直线方程.",
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"origin": "自拟题目",
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"030001": {
"id": "030001",
"content": "若$x,y,z$都是实数, 则:(填写``\\textcircled{1} 充分非必要、\\textcircled{2} 必要非充分、\\textcircled{3} 充要、\\textcircled{4} 既非充分又非必要''之一)\\\\\n(1) ``$xy=0$''是``$x=0$''的\\blank{50}条件;\\\\\n(2) ``$x\\cdot y=y\\cdot z$''是``$x=z$''的\\blank{50}条件;\\\\\n(3) ``$\\dfrac xy=\\dfrac yz$''是``$xz=y^2$''的\\blank{50}条件;\\\\\n(4) ``$|x |>| y|$''是``$x>y>0$''的\\blank{50}条件;\\\\\n(5) ``$x^2>4$''是``$x>2$'' 的\\blank{50}条件;\\\\\n(6) ``$x=-3$''是``$x^2+x-6=0$'' 的\\blank{50}条件;\\\\\n(7) ``$|x+y|<2$''是``$|x|<1$且$|y|<1$'' 的\\blank{50}条件;\\\\\n(8) ``$|x|<3$''是``$x^2<9$'' 的\\blank{50}条件;\\\\\n(9) ``$x^2+y^2>0$''是``$x\\ne 0$'' 的\\blank{50}条件;\\\\\n(10) ``$\\dfrac{x^2+x+1}{3x+2}<0$''是``$3x+2<0$'' 的\\blank{50}条件;\\\\\n(11) ``$0<x<3$''是``$|x-1|<2$'' 的\\blank{50}条件.",