设[tex=0.857x1.0]m2DKAQtGuc1DyN3zyNlILg==[/tex]是 PID, [tex=0.786x1.0]XvHgf70VtK2FH5G93l0k3g==[/tex]为整环, 并且[tex=0.857x1.0]m2DKAQtGuc1DyN3zyNlILg==[/tex]是[tex=0.786x1.0]XvHgf70VtK2FH5G93l0k3g==[/tex]的子环, [tex=5.214x1.357]VFWl1yAokBFlo+nHBbGmoD5rwAzFW4xsLvf5k+w7nKE=[/tex]. 如果[tex=0.571x1.0]TcM6B5Wrs5vy9dWrxRPSdg==[/tex]是[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]和[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]在[tex=0.857x1.0]m2DKAQtGuc1DyN3zyNlILg==[/tex]中的最大公因子, 证明[tex=0.571x1.0]TcM6B5Wrs5vy9dWrxRPSdg==[/tex]也是[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]和[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]在[tex=0.786x1.0]XvHgf70VtK2FH5G93l0k3g==[/tex]中的最大公因子.
举一反三
- 设[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex],[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]是整数且不全为0，而[tex=9.857x1.214]hhHzRVDsWGXE+Yltfe39hDUdsl3Yzf9jGRPDg4wYEoJYR6eBGAfms1GUG8a2PN1l[/tex]，证明[tex=0.571x1.0]TcM6B5Wrs5vy9dWrxRPSdg==[/tex]是[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]与[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]的一个最大公因数当且仅当[tex=4.214x1.357]jI1oqbiyUHYU1xbNvvBdDK5ib01K7Vb7AmVkL7RKEyk=[/tex]
- 结构分别承受两组荷载作用，如图[tex=1.929x1.286]+A91pi2VXLtyYrVQoi0TLA==[/tex]所示，下列等式中哪些是正确的?各位移以与相应广义力指向一致为正。[img=728x191]179cc56b9ed8e72.png[/img](1)图[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]中[tex=0.857x1.0]m2DKAQtGuc1DyN3zyNlILg==[/tex]截面的转角一图[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]中[tex=0.714x1.0]J/aA9EEo0KmJFnWWfX7LmQ==[/tex]点的水平位移;(2)图[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]中[tex=0.714x1.0]J/aA9EEo0KmJFnWWfX7LmQ==[/tex]点的水平位移=图[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]中[tex=0.857x1.0]m2DKAQtGuc1DyN3zyNlILg==[/tex]截面的转角;(3)图[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]中[tex=0.714x1.0]J/aA9EEo0KmJFnWWfX7LmQ==[/tex]铰两侧截面相对转角=图[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]中[tex=0.857x1.0]m2DKAQtGuc1DyN3zyNlILg==[/tex]点的水平位移;(4)图[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]中[tex=0.857x1.0]m2DKAQtGuc1DyN3zyNlILg==[/tex]点水平位移=图[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]中[tex=0.714x1.0]J/aA9EEo0KmJFnWWfX7LmQ==[/tex]铰两侧截面相对转角。
- 图9-26所示，金属球[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]和金属球壳[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]同心放置，它们原先都不带电。设球为[tex=0.857x1.0]6WwbFXETRyeyXlvAruSoNg==[/tex]，球壳[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]的内、外半径分别为[tex=0.857x1.0]BNzznGkXRFuGyw2vMy6rWw==[/tex]和[tex=0.857x1.0]Fz01PbYkU0SRGm3tB5KjiA==[/tex]。求在下列情况下[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]、[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]的电势差：使[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]带[tex=1.286x1.143]HtShgpkNmCs66SDQIt6cYg==[/tex],使[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]带[tex=1.286x1.143]NeILClIc8twxeO5vjYm8Dw==[/tex][img=203x220]17e1aa8f4234a38.png[/img]
- 设[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]，[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]和[tex=0.571x1.0]TcM6B5Wrs5vy9dWrxRPSdg==[/tex]是基数，表明[tex=2.357x1.071]3eLzYXJKd0KeuMfAOoGQfQ==[/tex]不蕴含着[tex=3.357x1.071]Bw5xeTL/rksJwF4Tg7Qs2A==[/tex]。
- 图9-26所示，金属球[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]和金属球壳[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]同心放置，它们原先都不带电。设球为[tex=0.857x1.0]6WwbFXETRyeyXlvAruSoNg==[/tex]，球壳[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]的内、外半径分别为[tex=0.857x1.0]BNzznGkXRFuGyw2vMy6rWw==[/tex]和[tex=0.857x1.0]Fz01PbYkU0SRGm3tB5KjiA==[/tex]。求在下列情况下[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]、[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]的电势差：使[tex=0.571x0.786]c59+3vo0/Vn/FvNRhDRu5g==[/tex]带[tex=1.286x1.143]NeILClIc8twxeO5vjYm8Dw==[/tex],将[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]的外表面接地。[img=203x220]17e1aa8f4234a38.png[/img]