设 [img=16x19]1803037146209f0.png[/img] 为 3 阶方阵, [img=15x19]180303714f94789.png[/img] 为 [img=40x20]180303715814dd9.png[/img] 矩阵, 则下列矩阵中, [ ]一定是对称矩阵.
A: [img=68x25]18030371608674e.png[/img]
B: [img=46x23]1803037168ff1f3.png[/img]
C: [img=44x23]180303717195e9b.png[/img]
D: [img=60x25]180303717a4c2ed.png[/img]
E: [img=60x23]1803037182dda33.png[/img]
F: [img=66x25]180303718b9a05f.png[/img]
G: [img=61x23]1803037194cc5e6.png[/img]
H: [img=107x25]180303719d8c4a9.png[/img]
A: [img=68x25]18030371608674e.png[/img]
B: [img=46x23]1803037168ff1f3.png[/img]
C: [img=44x23]180303717195e9b.png[/img]
D: [img=60x25]180303717a4c2ed.png[/img]
E: [img=60x23]1803037182dda33.png[/img]
F: [img=66x25]180303718b9a05f.png[/img]
G: [img=61x23]1803037194cc5e6.png[/img]
H: [img=107x25]180303719d8c4a9.png[/img]
举一反三
- 设 [img=16x19]1802e17c2bb94d8.png[/img] 为 3 阶方阵, [img=15x19]1802e17c3401061.png[/img] 为 [img=40x20]1802e17c3d3e764.png[/img] 矩阵, 则下列矩阵中, [ ]一定是对称矩阵. A: [img=68x25]1802e17c46a3a54.png[/img] B: [img=46x23]1802e17c53038b3.png[/img] C: [img=44x23]1802e17c5cc8890.png[/img] D: [img=60x25]1802e17c6662070.png[/img] E: [img=60x23]1802e17c6ff6d7b.png[/img] F: [img=66x25]1802e17c791d19f.png[/img] G: [img=61x23]1802e17c8257cb9.png[/img] H: [img=107x25]1802e17c8bc6a20.png[/img]
- 设 [img=16x19]1802e19cf606b3a.png[/img] 为 3 阶方阵, [img=15x19]1802e19cfe4c820.png[/img] 为 [img=40x20]1802e19d081f12b.png[/img] 矩阵, 则下列矩阵中, [ ]一定是对称矩阵. A: [img=68x25]1802e19d11c287b.png[/img] B: [img=46x23]1802e19d19e3f02.png[/img] C: [img=60x25]1802e19d226a5f9.png[/img] D: [img=44x23]1802e19d2b84bfe.png[/img] E: [img=60x23]1802e19d33a21a2.png[/img] F: [img=66x25]1802e19d3cc20e5.png[/img] G: [img=61x23]1802e19d45fbc02.png[/img] H: [img=107x25]1802e19d4ec84db.png[/img]
- 设 [img=16x19]18030b7d1d1a17d.png[/img] 为 3 阶方阵, [img=15x19]18030b7d2502f11.png[/img] 为 [img=40x20]18030b7d2d14e7c.png[/img] 矩阵, 则下列矩阵中, [ ]一定是对称矩阵. A: [img=68x25]18030b7d35dfe28.png[/img] B: [img=46x23]18030b7d3e97474.png[/img] C: [img=44x23]18030b7d46c6bfc.png[/img] D: [img=60x25]18030b7d4f1fdcf.png[/img] E: [img=60x23]18030b7d57840d6.png[/img] F: [img=66x25]18030b7d5faaf20.png[/img] G: [img=61x23]18030b7d689a2e4.png[/img] H: [img=107x25]18030b7d711c334.png[/img]
- 令F(x):x是有理数,G(x):x是实数。将命题“所有的有理数都是实数,但有的有实数不是有理数”符号化为() 未知类型：{'options': ['17e0a83a4157352.jpgx(F(x)∧G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)[img=14x9]17e0a73094b5dcf.jpg[/img][img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)[img=14x9]17e0a73094b5dcf.jpg[/img]G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)∧[img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)∧G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)∧[img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)[img=14x9]17e0a73094b5dcf.jpg[/img]G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)[img=14x9]17e0a73094b5dcf.jpg[/img][img=10x11]17e0a839b915354.jpg[/img]F(x))'], 'type': 102}
- 设 [img=16x19]1803037146209f0.png[/img] 为 3 阶方阵, [img=15x19]180303714f94789.png[/img] 为 [img=40x20]180303715814dd9.png[/img] 矩阵, 则下列矩阵中, [ ]一定是对称矩阵. 未知类型：{'options': ['', '', '', '', '', '', '', ''], 'type': 102}