函数[tex=3.929x1.286]yH8OpWYvVh8yAzyOD4YRbb8fLFV35NQ+YCPKvTZlI/Q=[/tex]的导数[tex=0.786x1.286]hcuFEQhnojJpvVP5jiYOXA==[/tex]是[input=type:blank,size:6][/input] .
未知类型:{'options': ['[tex=5.714x1.286]+S44PqzWs5VjFm9H2WgpuOfsTA39zRmWC3FJ2mXEi1w=[/tex]', '[tex=3.857x1.286]4T8DbR3F/kxzdsyqDVXwyBq09YRI9ptWFxMMfTzT4ng=[/tex]', '[tex=10.571x2.357]QpcHeEUW9vGG4p0zNCrPt45FxQuoeEHpi2uPwVUHMq5/bOYDFptrWcIwZPQtdCI+dx4gWgzeuyUDYy/R8ncdhA==[/tex]', '[tex=7.0x2.0]CKVQhoRf6JyIsQPBBZtS/Xtj2UkbuI785NKqa+G6V4STYqTD4cDCEpqL1nxBzeTH[/tex]'], 'type': 102}
未知类型:{'options': ['[tex=5.714x1.286]+S44PqzWs5VjFm9H2WgpuOfsTA39zRmWC3FJ2mXEi1w=[/tex]', '[tex=3.857x1.286]4T8DbR3F/kxzdsyqDVXwyBq09YRI9ptWFxMMfTzT4ng=[/tex]', '[tex=10.571x2.357]QpcHeEUW9vGG4p0zNCrPt45FxQuoeEHpi2uPwVUHMq5/bOYDFptrWcIwZPQtdCI+dx4gWgzeuyUDYy/R8ncdhA==[/tex]', '[tex=7.0x2.0]CKVQhoRf6JyIsQPBBZtS/Xtj2UkbuI785NKqa+G6V4STYqTD4cDCEpqL1nxBzeTH[/tex]'], 'type': 102}
举一反三
- 下列方程中是一阶微分方程的是[input=type:blank,size:4][/input]. 未知类型:{'options': ['[tex=8.0x1.571]SnLzj4UlSfnGqNtEzxfZSuZwslGsWxsvP2Y+yf7H578Vefe1Ol/nJT135DjkdnSNNikL3arAj80BjvPHaHCDiA==[/tex]', '[tex=10.571x1.571]JR4yrHJRIZfJXwhFSObwrfajFnWUvXzM/YiA3M6aDKuVBZ8I+7v5iXTXdA3E6Rm4vOE2BCfPwFP2rmRygXKEUDk1qLsNDCJ2p8GEbfCSr2s=[/tex]', '[tex=5.643x1.357]m0sKckxx+jZ9iltApBtB23TBISIOx/g0judcsS+akNFZrUNCq3g+BIVQwGbQEh/C[/tex]', '$y^{(4)}+5 y^{\\prime}-\\cos x=0$'], 'type': 102}
- [tex=0.643x1.0]fv8vDLRECIdb8WoKdvJs5Q==[/tex]原子[tex=1.071x1.0]Fz2Zp4HuhGiJVhtGcGDIhA==[/tex]状态的轨道角动量沿磁场方向有几个分量[input=type:blank,size:4][/input] 未知类型:{'options': ['5', '4', '3', '2'], 'type': 102}
- 指出下列电磁辐射所在的光谱区(光速为 [tex=6.429x1.5]1/2H66qmeWP9GenrBNTr2ZhpKiB6H1DdgqtszgSMkTvraIr8dWHn2x3yptmT5H2n[/tex] ) :(1) 波长 [tex=3.714x1.0]StDJXnR43RPspiIKObZzuw9O/dLrVHZu8RJRRAY8kSU=[/tex][input=type:blank,size:4][/input]; (2) 波数 [tex=3.714x1.214]8VzQUldHmwJWvVKk4pz6jk4Am8tzuR2InQyVnni/Bbo=[/tex][input=type:blank,size:4][/input];(3)频率[tex=5.143x1.357]uZDMs7g7gUrO1odXQeZ4JgUgtCwdZjGo6H7tPYh7EJh/4QDeDY5W0+Pdyym88s5X[/tex][input=type:blank,size:4][/input];(4)波长 [tex=2.929x1.0]fh1smEHXU8S6milYZ79dbP7Y0MTZvW00Ph9YYS+SEPk=[/tex][input=type:blank,size:4][/input]。
- 设随机变量 [tex=0.929x1.286]uswT/CEcOIwMpCvTz/zeaA==[/tex] 服从参数 [tex=3.143x1.286]+YbFeYrJMNsGfJf0KraF7SPelDX5xgqsp9CtXCLBwA8=[/tex] 的指数分布,则 E(X)= [input=type:blank,size:4][/input], D(X) =[input=type:blank,size:4][/input].
- 若[tex=8.857x3.357]Uyz5s0rmQIddjb5Jc2T/YQrtN3x5ZN9FMGW6yC3xzseiTBqypew7SW9sf0+ImEr8Gb2OxOc7YQnxDUAy/QpPIvpyRkYir8yXfSAvaVVfv9tpEubyVKyvyG1FvqsyObDQVYRa5euYkQmr6Zp5am+qjeoyfm7qtU6E7/m8bxoAtCI=[/tex],则[tex=9.857x3.929]Uyz5s0rmQIddjb5Jc2T/Yet6pkqm2clWks988tQGMyddjCfgQJZCXqeyBo6TCVQLD+q4ocARe8VDh4eF88bR2uWUDgBmpI7LuOFSX83tpVYXrB/7L1y8UtKr8v2VjCLamW9xuHzuh/LfosKzoixoWMuCwsl97RSleQYwcCfwWoRtFlHMnwklS6da513LincC[/tex][input=type:blank,size:6][/input] . A: 2 B: 4 C: 8 D: 16