• 2022-06-19
    判断下列集合对于给定运算能否构成群,并简要说明理由. [br][/br][tex=9.929x2.786]sk9PgRj6qi1ukTSOeh1uHQlOPXhTBGI1g+4eIdfFcJUF+OQxLn9ddqE8/3ZYPMpIzxBHl0blNWv4qOhiSh/PJ3unhuiNq5th80ie9w+F4aDQ2L3Fu7m19kvBDUUHERn/[/tex]为实数且[tex=4.929x1.571]PuzG5iCoMwMxpFGb7JeR3xB4aIGZcOlMB9eXm8/lz44XnbEDyU+JeDY5iJns0pbD[/tex]关于矩阵乘法.[br][/br][br][/br]