验证下列方程为恰当方程，并给出求解过程。[tex=11.643x1.571]CxBFB7Q2I5TzOKPCLZ8WXd9dbtaVcNTnACGNHtpzy1vQGb8CZ8uewU5xS47/haKE[/tex]

当发电机的三相绕组连成星形时,设线电压[tex=11.643x1.571]hTFIbhYHYucdHfAaM9Z+y5GWmQAZAP0DDgmd0mt4nvc+1/BBBzu7WRdkRl9BnJdOdi9Y58TykPJWAYq0IGuw6Eg8bKtIne7/4VsCgeArTXA=[/tex]试写出相电压[tex=0.929x1.0]6ajasqZpuIbDhIXAyBtsFg==[/tex]的三角函数式。 

[tex=2.0x1.071]RVRsqGpM+l0pcnNBRfPaB3WVHgWV+D28rqtaekCXZDE=[/tex]时, 也极 [tex=6.286x1.5]A6H+OG0QA4sWFxI6IzoMtzT7nAJ9S7X67fAUqrm7k89XUh0VJKFt2t2AvjWaDu3ZLDkvGWiO04ifB2NyxJB7kg==[/tex] 的[tex=11.643x1.571]bsm9F+0DnFBz46Ln0vvqSTGeXgcoixjk2XQBL8cecMJNIKKCX90SJ0wUW/yc904ONeTLXY5AX69tyo8udRC+o/Egt1IGWABxHlQBWs0lJ9I=[/tex], 电极 [tex=14.571x1.5]A6H+OG0QA4sWFxI6IzoMt5YyZcZbpklkWt1qzmeOfsjWGRvlAZIFjVaZ6WD+S5tLyWSc23Bk40VV4xv+5tVQ4W5cHKSh8+uQR095B2muwtc=[/tex] 的还原电势为[input=type:blank,size:6][/input]

由镍电极和标准氢电极组成原电池。若 [tex=11.643x1.571]G45Yvjtdbs2ivwB6aVhC13YTWkLlqlTK7wjUgxDkaawL5GogAokUnYuxVHy1JuR2Kvo+Pz45eyghcFHeDOjKOg==[/tex] 时,原电池的电动势为 [tex=2.929x1.0]lnLfngEemSQGy6WRPFNUqQ==[/tex], 其中镍为负极,计算锦电极的标准电极电势。

在[tex=1.214x1.214]mjFmVzVLrMjMWnebWd6D1A==[/tex]中，下列变换为线性变换的是（    ）。 未知类型：{'options': ['[tex=13.071x1.357]A84hoinsDNvmu//7NvY6GA3Kg/ifUDCZUTNHb9aRysP1UlzidD+NNJ8qf0pmxOndKVIcURrIfEvJRBN6l7KL3YN73YKMQEAG19+ta7U9GHClJv41KDh9REwcxrTi/WeB[/tex]', '[tex=15.5x1.357]lnrAUJgElu+EsMroH4zhBrJnhktgcRkdRi7GPA2owWu1EnAc17VYWWyuLjY6c2W4alKypHayQjxzxh1mv+Hh4XknCy7lO0j5nch/GwLM02NL6NbrlwrYV2cYhSeuABM5[/tex]', '[tex=11.643x1.571]iAqdrcT9W6IS5YEdq/aI1hnsEPSYaClPHmgCSrSYaD0uQ6FMOMYgIDc4uxbscCJLR+wulNM7mFh+UNZ2n9tVYnawVA7ATlVj05lSV+0pDj9qzs3b3UhGZDz3pclRkKtt[/tex]', '[tex=14.286x1.357]KBvmtH4P7kQAbx9U0Wka+RcCs7Wb359BWVl+SDkAUvHNz6iA52zwxHHqu5FFhENrOxPCD1xzC2H+Xeidh3mPsX0knGliAe6+Bo0iJKoNA91qYMxPzja67+pvmV/07la6[/tex]'], 'type': 102}

在[tex=1.214x1.214]mjFmVzVLrMjMWnebWd6D1A==[/tex]中，下列变换为线性变换的是（    ）。 未知类型：{'options': ['[tex=13.071x1.357]A84hoinsDNvmu//7NvY6GA3Kg/ifUDCZUTNHb9aRysP1UlzidD+NNJ8qf0pmxOndKVIcURrIfEvJRBN6l7KL3YN73YKMQEAG19+ta7U9GHClJv41KDh9REwcxrTi/WeB[/tex]', '[tex=15.5x1.357]lnrAUJgElu+EsMroH4zhBrJnhktgcRkdRi7GPA2owWu1EnAc17VYWWyuLjY6c2W4alKypHayQjxzxh1mv+Hh4XknCy7lO0j5nch/GwLM02NL6NbrlwrYV2cYhSeuABM5[/tex]', '[tex=11.643x1.571]iAqdrcT9W6IS5YEdq/aI1hnsEPSYaClPHmgCSrSYaD0uQ6FMOMYgIDc4uxbscCJLR+wulNM7mFh+UNZ2n9tVYnawVA7ATlVj05lSV+0pDj9qzs3b3UhGZDz3pclRkKtt[/tex]', '[tex=14.286x1.357]KBvmtH4P7kQAbx9U0Wka+RcCs7Wb359BWVl+SDkAUvHNz6iA52zwxHHqu5FFhENrOxPCD1xzC2H+Xeidh3mPsX0knGliAe6+Bo0iJKoNA91qYMxPzja67+pvmV/07la6[/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)