• 2022-06-07 问题

    判断直线[tex=10.214x3.643]EMppYWhfMo2yai9uEPTyv0jazrAB1BYUmtjVMx3u1IvpZ72VYPDPSvn5lkQkcWKmPcZvdkhrhEPHeNCkJZHyww==[/tex]与平面 [tex=10.5x1.214]gpABB7dey8g0zo7XdwSz7xwQArKGKA1cnOAMTZivS54=[/tex]位置关系,若相交,则求出它们的交点坐标与交角.

    判断直线[tex=10.214x3.643]EMppYWhfMo2yai9uEPTyv0jazrAB1BYUmtjVMx3u1IvpZ72VYPDPSvn5lkQkcWKmPcZvdkhrhEPHeNCkJZHyww==[/tex]与平面 [tex=10.5x1.214]gpABB7dey8g0zo7XdwSz7xwQArKGKA1cnOAMTZivS54=[/tex]位置关系,若相交,则求出它们的交点坐标与交角.

  • 2022-06-29 问题

     已知矩阵[tex=10.214x3.643]+HNIZcMaSzNwCe0LO7bsUtE7T/ezT3heRoWANqpeD0/cyz1B9vugSu91cGFPCaKS6/j0aacgpq6BLAfAdykVMN4QSnWOlhTMkNsoZ5+16kucfpI4e5UrI+gXX3rz+bRHsDFAoabQvuieZinZuvJiGA==[/tex] 为三阶矩阵, 且满足 [tex=7.714x1.357]c5Cf4pRARaBipYntugL/3uPEqG4gqYUIwchnzd87RgyvnhKwSQx7eHD9H10eHn2lgX8G7k7rjRz7GHxiQYiE2Hmo9TJxj/+etlYp7AWamp/JrxyCU/Fe9+eirD3eaz4J[/tex], 求矩阵[tex=1.214x1.0]GTnOCR9hNPsOuxGSyBGTAF1pCZPH8dgftDfdY5NJ0Ao=[/tex]

     已知矩阵[tex=10.214x3.643]+HNIZcMaSzNwCe0LO7bsUtE7T/ezT3heRoWANqpeD0/cyz1B9vugSu91cGFPCaKS6/j0aacgpq6BLAfAdykVMN4QSnWOlhTMkNsoZ5+16kucfpI4e5UrI+gXX3rz+bRHsDFAoabQvuieZinZuvJiGA==[/tex] 为三阶矩阵, 且满足 [tex=7.714x1.357]c5Cf4pRARaBipYntugL/3uPEqG4gqYUIwchnzd87RgyvnhKwSQx7eHD9H10eHn2lgX8G7k7rjRz7GHxiQYiE2Hmo9TJxj/+etlYp7AWamp/JrxyCU/Fe9+eirD3eaz4J[/tex], 求矩阵[tex=1.214x1.0]GTnOCR9hNPsOuxGSyBGTAF1pCZPH8dgftDfdY5NJ0Ao=[/tex]

  • 2022-06-29 问题

    【1987】下列函数在其定义域内连续的是 未知类型:{'options': ['[tex=7.286x1.357]ujpTLCFBHEEU6pojhOMUgLBSO/C+B3r4jyvS2uUXWtc=[/tex]', '[tex=10.571x2.786]w70lG1NUs5ZRhKHaXMaifahNYA2l55OVx/YI5vl5IU4ZfzTwMJdQ8poNSQAtX24asCCbsoN9HcABXnlS3JRW0D9zD1/aid4y1tBgRjJ4qc9ztTNjxiHyPxQ0/mfv1qcdERQsOXkf+O20mCCvifsR4A==[/tex]', '[tex=10.214x3.643]TI42JSNRppc7Hp/2HcGWnR4V5wgiHYRocVxvYWjgSN6H++wN24P/5xB1EiyKFBkJaFScZXCTDF34pPsJajQ+gxBl977Usv4khzowd0Gz0Dc=[/tex]', '[tex=9.643x4.0]abCE7E/WD5q4TQOibtpvETCE66etj2IUf5fZOAX4/UuIIf3JDq0bsCW07BnspRXOJrnRPKihXDaSBkmH3kwtgBw9tQ7m6ktkUQzUd7cXCpfZjHB5pa6Uy1SGldaVGHI2[/tex]'], 'type': 102}

    【1987】下列函数在其定义域内连续的是 未知类型:{'options': ['[tex=7.286x1.357]ujpTLCFBHEEU6pojhOMUgLBSO/C+B3r4jyvS2uUXWtc=[/tex]', '[tex=10.571x2.786]w70lG1NUs5ZRhKHaXMaifahNYA2l55OVx/YI5vl5IU4ZfzTwMJdQ8poNSQAtX24asCCbsoN9HcABXnlS3JRW0D9zD1/aid4y1tBgRjJ4qc9ztTNjxiHyPxQ0/mfv1qcdERQsOXkf+O20mCCvifsR4A==[/tex]', '[tex=10.214x3.643]TI42JSNRppc7Hp/2HcGWnR4V5wgiHYRocVxvYWjgSN6H++wN24P/5xB1EiyKFBkJaFScZXCTDF34pPsJajQ+gxBl977Usv4khzowd0Gz0Dc=[/tex]', '[tex=9.643x4.0]abCE7E/WD5q4TQOibtpvETCE66etj2IUf5fZOAX4/UuIIf3JDq0bsCW07BnspRXOJrnRPKihXDaSBkmH3kwtgBw9tQ7m6ktkUQzUd7cXCpfZjHB5pa6Uy1SGldaVGHI2[/tex]'], 'type': 102}

  • 2022-07-26 问题

    【1987】下列函数在其定义域内连续的是 未知类型:{'options': ['[tex=7.286x1.357]ujpTLCFBHEEU6pojhOMUgLBSO/C+B3r4jyvS2uUXWtc=[/tex]', '[tex=10.571x2.786]w70lG1NUs5ZRhKHaXMaifahNYA2l55OVx/YI5vl5IU4ZfzTwMJdQ8poNSQAtX24asCCbsoN9HcABXnlS3JRW0D9zD1/aid4y1tBgRjJ4qc9ztTNjxiHyPxQ0/mfv1qcdERQsOXkf+O20mCCvifsR4A==[/tex]', '[tex=10.214x3.643]TI42JSNRppc7Hp/2HcGWnR4V5wgiHYRocVxvYWjgSN6H++wN24P/5xB1EiyKFBkJaFScZXCTDF34pPsJajQ+gxBl977Usv4khzowd0Gz0Dc=[/tex]', '[tex=9.643x4.0]abCE7E/WD5q4TQOibtpvETCE66etj2IUf5fZOAX4/UuIIf3JDq0bsCW07BnspRXOJrnRPKihXDaSBkmH3kwtgBw9tQ7m6ktkUQzUd7cXCpfZjHB5pa6Uy1SGldaVGHI2[/tex]'], 'type': 102}

    【1987】下列函数在其定义域内连续的是 未知类型:{'options': ['[tex=7.286x1.357]ujpTLCFBHEEU6pojhOMUgLBSO/C+B3r4jyvS2uUXWtc=[/tex]', '[tex=10.571x2.786]w70lG1NUs5ZRhKHaXMaifahNYA2l55OVx/YI5vl5IU4ZfzTwMJdQ8poNSQAtX24asCCbsoN9HcABXnlS3JRW0D9zD1/aid4y1tBgRjJ4qc9ztTNjxiHyPxQ0/mfv1qcdERQsOXkf+O20mCCvifsR4A==[/tex]', '[tex=10.214x3.643]TI42JSNRppc7Hp/2HcGWnR4V5wgiHYRocVxvYWjgSN6H++wN24P/5xB1EiyKFBkJaFScZXCTDF34pPsJajQ+gxBl977Usv4khzowd0Gz0Dc=[/tex]', '[tex=9.643x4.0]abCE7E/WD5q4TQOibtpvETCE66etj2IUf5fZOAX4/UuIIf3JDq0bsCW07BnspRXOJrnRPKihXDaSBkmH3kwtgBw9tQ7m6ktkUQzUd7cXCpfZjHB5pa6Uy1SGldaVGHI2[/tex]'], 'type': 102}

  • 2022-10-29 问题

    【1987】下列函数在其定义域内连续的是 未知类型:{'options': ['[tex=7.286x1.357]ujpTLCFBHEEU6pojhOMUgLBSO/C+B3r4jyvS2uUXWtc=[/tex]', '[tex=10.571x2.786]w70lG1NUs5ZRhKHaXMaifahNYA2l55OVx/YI5vl5IU4ZfzTwMJdQ8poNSQAtX24asCCbsoN9HcABXnlS3JRW0D9zD1/aid4y1tBgRjJ4qc9ztTNjxiHyPxQ0/mfv1qcdERQsOXkf+O20mCCvifsR4A==[/tex]', '[tex=10.214x3.643]TI42JSNRppc7Hp/2HcGWnR4V5wgiHYRocVxvYWjgSN6H++wN24P/5xB1EiyKFBkJaFScZXCTDF34pPsJajQ+gxBl977Usv4khzowd0Gz0Dc=[/tex]', '[tex=9.643x4.0]abCE7E/WD5q4TQOibtpvETCE66etj2IUf5fZOAX4/UuIIf3JDq0bsCW07BnspRXOJrnRPKihXDaSBkmH3kwtgBw9tQ7m6ktkUQzUd7cXCpfZjHB5pa6Uy1SGldaVGHI2[/tex]'], 'type': 102}

    【1987】下列函数在其定义域内连续的是 未知类型:{'options': ['[tex=7.286x1.357]ujpTLCFBHEEU6pojhOMUgLBSO/C+B3r4jyvS2uUXWtc=[/tex]', '[tex=10.571x2.786]w70lG1NUs5ZRhKHaXMaifahNYA2l55OVx/YI5vl5IU4ZfzTwMJdQ8poNSQAtX24asCCbsoN9HcABXnlS3JRW0D9zD1/aid4y1tBgRjJ4qc9ztTNjxiHyPxQ0/mfv1qcdERQsOXkf+O20mCCvifsR4A==[/tex]', '[tex=10.214x3.643]TI42JSNRppc7Hp/2HcGWnR4V5wgiHYRocVxvYWjgSN6H++wN24P/5xB1EiyKFBkJaFScZXCTDF34pPsJajQ+gxBl977Usv4khzowd0Gz0Dc=[/tex]', '[tex=9.643x4.0]abCE7E/WD5q4TQOibtpvETCE66etj2IUf5fZOAX4/UuIIf3JDq0bsCW07BnspRXOJrnRPKihXDaSBkmH3kwtgBw9tQ7m6ktkUQzUd7cXCpfZjHB5pa6Uy1SGldaVGHI2[/tex]'], 'type': 102}

  • 2022-10-27 问题

    【1987】下列函数在其定义域内连续的是 未知类型:{'options': ['[tex=7.286x1.357]ujpTLCFBHEEU6pojhOMUgLBSO/C+B3r4jyvS2uUXWtc=[/tex]', '[tex=10.571x2.786]w70lG1NUs5ZRhKHaXMaifahNYA2l55OVx/YI5vl5IU4ZfzTwMJdQ8poNSQAtX24asCCbsoN9HcABXnlS3JRW0D9zD1/aid4y1tBgRjJ4qc9ztTNjxiHyPxQ0/mfv1qcdERQsOXkf+O20mCCvifsR4A==[/tex]', '[tex=10.214x3.643]TI42JSNRppc7Hp/2HcGWnR4V5wgiHYRocVxvYWjgSN6H++wN24P/5xB1EiyKFBkJaFScZXCTDF34pPsJajQ+gxBl977Usv4khzowd0Gz0Dc=[/tex]', '[tex=9.643x4.0]abCE7E/WD5q4TQOibtpvETCE66etj2IUf5fZOAX4/UuIIf3JDq0bsCW07BnspRXOJrnRPKihXDaSBkmH3kwtgBw9tQ7m6ktkUQzUd7cXCpfZjHB5pa6Uy1SGldaVGHI2[/tex]'], 'type': 102}

    【1987】下列函数在其定义域内连续的是 未知类型:{'options': ['[tex=7.286x1.357]ujpTLCFBHEEU6pojhOMUgLBSO/C+B3r4jyvS2uUXWtc=[/tex]', '[tex=10.571x2.786]w70lG1NUs5ZRhKHaXMaifahNYA2l55OVx/YI5vl5IU4ZfzTwMJdQ8poNSQAtX24asCCbsoN9HcABXnlS3JRW0D9zD1/aid4y1tBgRjJ4qc9ztTNjxiHyPxQ0/mfv1qcdERQsOXkf+O20mCCvifsR4A==[/tex]', '[tex=10.214x3.643]TI42JSNRppc7Hp/2HcGWnR4V5wgiHYRocVxvYWjgSN6H++wN24P/5xB1EiyKFBkJaFScZXCTDF34pPsJajQ+gxBl977Usv4khzowd0Gz0Dc=[/tex]', '[tex=9.643x4.0]abCE7E/WD5q4TQOibtpvETCE66etj2IUf5fZOAX4/UuIIf3JDq0bsCW07BnspRXOJrnRPKihXDaSBkmH3kwtgBw9tQ7m6ktkUQzUd7cXCpfZjHB5pa6Uy1SGldaVGHI2[/tex]'], 'type': 102}

  • 2022-06-30 问题

    下列变量组()是一个闭回路。 A: {x,x,x,x,x,x} B: {x,x,x,x,x} C: {x,x,x,x,x,x} D: {x,x,x,x,x,x}

    下列变量组()是一个闭回路。 A: {x,x,x,x,x,x} B: {x,x,x,x,x} C: {x,x,x,x,x,x} D: {x,x,x,x,x,x}

  • 2021-04-14 问题

    以下谓词蕴含式正确的是(): (∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)|(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)|(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))|(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)

    以下谓词蕴含式正确的是(): (∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)|(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)|(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))|(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)

  • 2021-04-14 问题

    以下谓词蕴含式正确的是(): (?x) (A(x)→B(x))=>( ?x)A(x)→(?x)B(x)|(?x) (A(x)?B(x))=>( ?x)A(x)?(?x)B(x)|(?x)A(x)∨(?x)B(x)=>( ?x) (A(x)∨B(x))|(?x) (A(x)∧B(x))=>(?x)A(x)∧(?x)B(x)

    以下谓词蕴含式正确的是(): (?x) (A(x)→B(x))=>( ?x)A(x)→(?x)B(x)|(?x) (A(x)?B(x))=>( ?x)A(x)?(?x)B(x)|(?x)A(x)∨(?x)B(x)=>( ?x) (A(x)∨B(x))|(?x) (A(x)∧B(x))=>(?x)A(x)∧(?x)B(x)

  • 2022-06-29 问题

    下列式中错误的是: A: (∀x)(A(x)Úp(x)) Û (∀x)A(x)Ú (∀x)p(x) B: ($x)A(x) Ù p Û ($x)(A(x) Ù p ) C: (∀x)(A(x)ÚB(x)) Þ (∀x)A(x)Ú( ∀x)B(x) D: ($x)(A(x)ÙB(x)) Þ ($x)A(x)Ù( $x)B(x)

    下列式中错误的是: A: (∀x)(A(x)Úp(x)) Û (∀x)A(x)Ú (∀x)p(x) B: ($x)A(x) Ù p Û ($x)(A(x) Ù p ) C: (∀x)(A(x)ÚB(x)) Þ (∀x)A(x)Ú( ∀x)B(x) D: ($x)(A(x)ÙB(x)) Þ ($x)A(x)Ù( $x)B(x)

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