收录高三寒假作业6题

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weiye.wang 2024-01-24 19:44:34 +08:00
parent 98a92eedcb
commit 8d1b2e1fbe
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20240124-163621 20240124-163621
023674:023676 023674:023676
20240124-194256
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"20220625\t王伟叶" "20220625\t王伟叶"
], ],
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"023678"
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@ -591967,7 +591969,9 @@
"20230209\t王伟叶" "20230209\t王伟叶"
], ],
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"023677"
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@ -639753,6 +639757,130 @@
"space": "4em", "space": "4em",
"unrelated": [] "unrelated": []
}, },
"023677": {
"id": "023677",
"content": "若直线 $l$ 过点 $A(2,-1)$、$B(1,2)$, 则直线 $l$ 的两点式方程为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20240124\t毛培菁"
],
"same": [],
"related": [
"021939"
],
"remark": "",
"space": "",
"unrelated": []
},
"023678": {
"id": "023678",
"content": "若直线 $3 x+2 y+5=0$ 的一个法向量为 $(a, a-2)$, 则 $a$ 的值为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20240124\t毛培菁"
],
"same": [],
"related": [
"002141"
],
"remark": "",
"space": "",
"unrelated": []
},
"023679": {
"id": "023679",
"content": "有一直线与 $y$ 轴交于 $(0,-2)$, 若其倾斜角的正弦满足方程 $6 x^2+x-1=0$, 则此直线方程为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20240124\t毛培菁"
],
"same": [],
"related": [],
"remark": "",
"space": "",
"unrelated": []
},
"023680": {
"id": "023680",
"content": "(1) 经过点 $M(2,-1)$, 倾斜角为直线 $4 x+3 y-1=0$ 的倾斜角的一半的直线方程是\\blank{50}.\\\\\n(2) 经过点 $P(3,-4)$, 且在坐标轴上的横截距和纵截距相等的直线方程为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20240124\t毛培菁"
],
"same": [],
"related": [],
"remark": "",
"space": "",
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},
"023681": {
"id": "023681",
"content": "(1) 若过点 $M(-2,3)$ 引一直线, 使它夹在两坐标轴间的线段被 $M$ 平分, 则该直线方程为\\blank{50}.\\\\\n(2) 若将直线 $x+2 y-4=0$ 绕着它与 $x$ 轴的交点按逆时针方向旋转 $\\dfrac{\\pi}{4}$, 旋转后所得直线方程为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20240124\t毛培菁"
],
"same": [],
"related": [],
"remark": "",
"space": "",
"unrelated": []
},
"023682": {
"id": "023682",
"content": "已知三角形的一个顶点 $A(-4,2)$, 两条中线所在直线方程分别为 $3 x-2 y+2=0$ 和 $3 x+5 y-12=0$, 求三角形各边所在直线方程.",
"objs": [],
"tags": [],
"genre": "解答题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20240124\t毛培菁"
],
"same": [],
"related": [],
"remark": "",
"space": "4em",
"unrelated": []
},
"030001": { "030001": {
"id": "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.", "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.",