求下列序列的单边 [tex=0.5x1.286]asctJDWpGaq/ETe64ANZ1Q==[/tex]  变换,并指明其收敛域。[tex=9.571x2.429]g2tF4iK0OvLCo1p/ELPdj6nxxQO8BlVl76ClBcKCDUen+wjHKtHm8oyBnkFRlLcopUui0EMqlaq/kwTkyIOTeA==[/tex]

下列函数中，在定义域内连续的是[u]      [/u]. 未知类型：{'options': ['[tex=9.571x2.429]b0AejGK8cZqfdbG3Tux+uQTGJ7KqnpWI88JYx3BW0mlJ24imOVqd1N2YfD/t1u7OvnO4uXsYUad2fQ7DtHMuijKOSG88hdnB9zQKQXG1cUs=[/tex]', '[tex=9.429x4.0]cmTep0AEWBonXh7mu+m1TbPW7KVRtM2BMmUKRgt+1DMaEIbLVzl989jJ9KCa1O1540HGERm5hz9swAm1JxmHd4/I5mas6HWbJ6PZLshPkq3dRBzCYIcP44Q+2INS+FQD[/tex]', '[tex=9.929x2.429]TI42JSNRppc7Hp/2HcGWnYouwrRpQEVhaifL78tSwGHhlAWQ9tq8wzqhTf16re5UrFnZ5wyUWfcWSEyauDfirQ==[/tex]', '[tex=12.071x2.5]rPv0VD0uSHilk9kRx82SkF82srnEHLB17+e86nMSLroI1tu1FdVNvbPO7AQgIe9gy9CaHZ7R9vOTgAgy3NoH8IHmNNOgPvoO2JeMky1Gc/4=[/tex]'], 'type': 102}

下列函数中，在定义域内连续的是[u]      [/u]. 未知类型：{'options': ['[tex=9.571x2.429]b0AejGK8cZqfdbG3Tux+uQTGJ7KqnpWI88JYx3BW0mlJ24imOVqd1N2YfD/t1u7OvnO4uXsYUad2fQ7DtHMuijKOSG88hdnB9zQKQXG1cUs=[/tex]', '[tex=9.429x4.0]cmTep0AEWBonXh7mu+m1TbPW7KVRtM2BMmUKRgt+1DMaEIbLVzl989jJ9KCa1O1540HGERm5hz9swAm1JxmHd4/I5mas6HWbJ6PZLshPkq3dRBzCYIcP44Q+2INS+FQD[/tex]', '[tex=9.929x2.429]TI42JSNRppc7Hp/2HcGWnYouwrRpQEVhaifL78tSwGHhlAWQ9tq8wzqhTf16re5UrFnZ5wyUWfcWSEyauDfirQ==[/tex]', '[tex=12.071x2.5]rPv0VD0uSHilk9kRx82SkF82srnEHLB17+e86nMSLroI1tu1FdVNvbPO7AQgIe9gy9CaHZ7R9vOTgAgy3NoH8IHmNNOgPvoO2JeMky1Gc/4=[/tex]'], 'type': 102}

下列函数中，在定义域内连续的是[u]      [/u]. 未知类型：{'options': ['[tex=9.571x2.429]b0AejGK8cZqfdbG3Tux+uQTGJ7KqnpWI88JYx3BW0mlJ24imOVqd1N2YfD/t1u7OvnO4uXsYUad2fQ7DtHMuijKOSG88hdnB9zQKQXG1cUs=[/tex]', '[tex=9.429x4.0]cmTep0AEWBonXh7mu+m1TbPW7KVRtM2BMmUKRgt+1DMaEIbLVzl989jJ9KCa1O1540HGERm5hz9swAm1JxmHd4/I5mas6HWbJ6PZLshPkq3dRBzCYIcP44Q+2INS+FQD[/tex]', '[tex=9.929x2.429]TI42JSNRppc7Hp/2HcGWnYouwrRpQEVhaifL78tSwGHhlAWQ9tq8wzqhTf16re5UrFnZ5wyUWfcWSEyauDfirQ==[/tex]', '[tex=12.071x2.5]rPv0VD0uSHilk9kRx82SkF82srnEHLB17+e86nMSLroI1tu1FdVNvbPO7AQgIe9gy9CaHZ7R9vOTgAgy3NoH8IHmNNOgPvoO2JeMky1Gc/4=[/tex]'], 'type': 102}

下列函数中，在定义域内连续的是[u]      [/u]. 未知类型：{'options': ['[tex=9.571x2.429]b0AejGK8cZqfdbG3Tux+uQTGJ7KqnpWI88JYx3BW0mlJ24imOVqd1N2YfD/t1u7OvnO4uXsYUad2fQ7DtHMuijKOSG88hdnB9zQKQXG1cUs=[/tex]', '[tex=9.429x4.0]cmTep0AEWBonXh7mu+m1TbPW7KVRtM2BMmUKRgt+1DMaEIbLVzl989jJ9KCa1O1540HGERm5hz9swAm1JxmHd4/I5mas6HWbJ6PZLshPkq3dRBzCYIcP44Q+2INS+FQD[/tex]', '[tex=9.929x2.429]TI42JSNRppc7Hp/2HcGWnYouwrRpQEVhaifL78tSwGHhlAWQ9tq8wzqhTf16re5UrFnZ5wyUWfcWSEyauDfirQ==[/tex]', '[tex=12.071x2.5]rPv0VD0uSHilk9kRx82SkF82srnEHLB17+e86nMSLroI1tu1FdVNvbPO7AQgIe9gy9CaHZ7R9vOTgAgy3NoH8IHmNNOgPvoO2JeMky1Gc/4=[/tex]'], 'type': 102}

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}

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)

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)

判断下列推证是否正确。 (∀x)(A(x)→B(x))⇔(∀x)(￢A(x)∨B(x)) ⇔(∀x)￢( A(x)∧￢B(x) ) ⇔￢(∃x) ( A(x)∧￢B(x) ) ⇔￢( (∃x)A(x)∧(∃x)￢B(x) ) ⇔￢(∃x)A(x)∨￢(∃x)￢B(x) ⇔￢(∃x)A(x)∨(∀x)B(x) ⇔(∃x)A(x)→(∀x)B(x)