Mathway | 热门问题

热门问题

等级	主题	问题	格式化的问题
157301	求出行列式	[[3,-5],[8,3]]	$[\begin{array}{c} 3 & - 5 \\ 8 & 3 \end{array}]$
157302	求出行列式	[[3,-6],[4,2]]	$[\begin{array}{c} 3 & - 6 \\ 4 & 2 \end{array}]$
157303	求出行列式	[[3,-6],[5,3]]	$[\begin{array}{c} 3 & - 6 \\ 5 & 3 \end{array}]$
157304	求出行列式	[[-6,-7],[-4,-2]]	$[\begin{array}{c} - 6 & - 7 \\ - 4 & - 2 \end{array}]$
157305	求出行列式	[[6,8],[2,-7]]	$[\begin{array}{c} 6 & 8 \\ 2 & - 7 \end{array}]$
157306	求出行列式	[[6,8,7,-7],[-9,-1,4,0]] ; a_12	$[\begin{array}{c} 6 & 8 & 7 & - 7 \\ - 9 & - 1 & 4 & 0 \end{array}]$ ; $a_{12}$
157307	求出行列式	[[5,4,3],[2,4,4],[3,4,1]]	$[\begin{array}{c} 5 & 4 & 3 \\ 2 & 4 & 4 \\ 3 & 4 & 1 \end{array}]$
157308	求出行列式	[[-5,4],[2,-5]]	$[\begin{array}{c} - 5 & 4 \\ 2 & - 5 \end{array}]$
157309	求出行列式	[[5,-5,5],[-3,0,4],[2,0,-1]]	$[\begin{array}{c} 5 & - 5 & 5 \\ - 3 & 0 & 4 \\ 2 & 0 & - 1 \end{array}]$
157310	求出行列式	[[5,5,5],[5,4,4],[6,2,5]]	$[\begin{array}{c} 5 & 5 & 5 \\ 5 & 4 & 4 \\ 6 & 2 & 5 \end{array}]$
157311	求出行列式	[[5,7],[2,3]]	$[\begin{array}{c} 5 & 7 \\ 2 & 3 \end{array}]$
157312	求出行列式	[[5,3],[6,6]]	$[\begin{array}{c} 5 & 3 \\ 6 & 6 \end{array}]$
157313	求出行列式	[[5,-3,8],[0,3,9],[0,0,-7]]	$[\begin{array}{c} 5 & - 3 & 8 \\ 0 & 3 & 9 \\ 0 & 0 & - 7 \end{array}]$
157314	求出行列式	[[-5,3],[3,8]]	$[\begin{array}{c} - 5 & 3 \\ 3 & 8 \end{array}]$
157315	求出行列式	[[5,-2],[-1,-3]]	$[\begin{array}{c} 5 & - 2 \\ - 1 & - 3 \end{array}]$
157316	求出行列式	[[-5,-2,3],[-3,1,2],[2,4,-2]]	$[\begin{array}{c} - 5 & - 2 & 3 \\ - 3 & 1 & 2 \\ 2 & 4 & - 2 \end{array}]$
157317	求出行列式	[[5,2,6,3],[3,9,12,1],[-3,1,4,1],[4,1,5,3]]	$[\begin{array}{c} 5 & 2 & 6 & 3 \\ 3 & 9 & 12 & 1 \\ - 3 & 1 & 4 & 1 \\ 4 & 1 & 5 & 3 \end{array}]$
157318	求出行列式	[[5,2,0],[3,1,4],[0,1,5]]	$[\begin{array}{c} 5 & 2 & 0 \\ 3 & 1 & 4 \\ 0 & 1 & 5 \end{array}]$
157319	求出行列式	[[5,1,0],[0,2,-1],[-2,-3,1]]	$[\begin{array}{c} 5 & 1 & 0 \\ 0 & 2 & - 1 \\ - 2 & - 3 & 1 \end{array}]$
157320	求出行列式	[[-4,8],[6,7]]	$[\begin{array}{c} - 4 & 8 \\ 6 & 7 \end{array}]$
157321	求出行列式	[[-4,3,3],[3,0,2],[3,1,1]]	$[\begin{array}{c} - 4 & 3 & 3 \\ 3 & 0 & 2 \\ 3 & 1 & 1 \end{array}]$
157322	求出行列式	[[x,0,-5],[2,x,x^2],[-5,x,1]]	$[\begin{array}{c} x & 0 & - 5 \\ 2 & x & x^{2} \\ - 5 & x & 1 \end{array}]$
157323	求出行列式	[[x,0],[0,x]]=361	$[\begin{array}{c} x & 0 \\ 0 & x \end{array}] = 361$
157324	求出行列式	[[x,-1,-2],[x,4,x],[7,0,x^2]]	$[\begin{array}{c} x & - 1 & - 2 \\ x & 4 & x \\ 7 & 0 & x^{2} \end{array}]$
157325	求出行列式	[[x,-1,-4],[x,5,x],[9,0,x^2]]	$[\begin{array}{c} x & - 1 & - 4 \\ x & 5 & x \\ 9 & 0 & x^{2} \end{array}]$
157326	求出行列式	[[x,4],[2,x]]	$[\begin{array}{c} x & 4 \\ 2 & x \end{array}]$
157327	求出行列式	[[x,5],[3,x]]	$[\begin{array}{c} x & 5 \\ 3 & x \end{array}]$
157328	求出行列式	[[x,1],[x,1+x]]	$[\begin{array}{c} x & 1 \\ x & 1 + x \end{array}]$
157329	求出行列式	[[x,16],[36,x]]	$[\begin{array}{c} x & 16 \\ 36 & x \end{array}]$
157330	求出行列式	[[x,0,-3],[3,x,x^2],[-5,x,1]]	$[\begin{array}{c} x & 0 & - 3 \\ 3 & x & x^{2} \\ - 5 & x & 1 \end{array}]$
157331	求出行列式	[[x,0,-3],[4,x,x^2],[-3,x,1]]	$[\begin{array}{c} x & 0 & - 3 \\ 4 & x & x^{2} \\ - 3 & x & 1 \end{array}]$
157332	求出行列式	[[a-x,b,c],[1,-x,0],[0,1,-x]]	$[\begin{array}{c} a - x & b & c \\ 1 & - x & 0 \\ 0 & 1 & - x \end{array}]$
157333	求出行列式	[[x,0,-2],[2,x,x^2],[-3,x,1]]	$[\begin{array}{c} x & 0 & - 2 \\ 2 & x & x^{2} \\ - 3 & x & 1 \end{array}]$
157334	求出行列式	[[x,0,-4],[2,x,x^2],[-5,x,1]]	$[\begin{array}{c} x & 0 & - 4 \\ 2 & x & x^{2} \\ - 5 & x & 1 \end{array}]$
157335	求出行列式	[[7,7],[-3,-3]]	$[\begin{array}{c} 7 & 7 \\ - 3 & - 3 \end{array}]$
157336	求出行列式	[[7,-1],[6,-2]]	$[\begin{array}{c} 7 & - 1 \\ 6 & - 2 \end{array}]$
157337	求出行列式	[[8,-1,0],[0,0,2],[9,12,-4]]	$[\begin{array}{c} 8 & - 1 & 0 \\ 0 & 0 & 2 \\ 9 & 12 & - 4 \end{array}]$
157338	求出行列式	[[8,-1],[-4,-1]]	$[\begin{array}{c} 8 & - 1 \\ - 4 & - 1 \end{array}]$
157339	求出行列式	[[8,1],[4,-1]]	$[\begin{array}{c} 8 & 1 \\ 4 & - 1 \end{array}]$
157340	求出行列式	[[8,0,0],[3,5,2],[7,2,3]]	$[\begin{array}{c} 8 & 0 & 0 \\ 3 & 5 & 2 \\ 7 & 2 & 3 \end{array}]$
157341	求出行列式	[[9,3,6],[2,3,8],[4,2,3]]	$[\begin{array}{c} 9 & 3 & 6 \\ 2 & 3 & 8 \\ 4 & 2 & 3 \end{array}]$
157342	求出行列式	[[9,1],[3,-1]]	$[\begin{array}{c} 9 & 1 \\ 3 & - 1 \end{array}]$
157343	求出行列式	[[-9,-9],[-7,-10]]	$[\begin{array}{c} - 9 & - 9 \\ - 7 & - 10 \end{array}]$
157344	求出行列式	[[-8,6],[5,8]]	$[\begin{array}{c} - 8 & 6 \\ 5 & 8 \end{array}]$
157345	求顶点式	f(x)=3x^2+30x+78	$f (x) = 3 x^{2} + 30 x + 78$
157346	求顶点式	f(x)=-3x^2+30x-78	$f (x) = - 3 x^{2} + 30 x - 78$
157347	求顶点式	f(x)=-3x^2+30x-72	$f (x) = - 3 x^{2} + 30 x - 72$
157348	求顶点式	f(x)=-3x^2+12x-10	$f (x) = - 3 x^{2} + 12 x - 10$
157349	求顶点式	f(x)=-3x^2-24x-43	$f (x) = - 3 x^{2} - 24 x - 43$
157350	求顶点式	f(x)=3x^2-2x+1	$f (x) = 3 x^{2} - 2 x + 1$
157351	求顶点式	f(x)=3x^2-18x+5	$f (x) = 3 x^{2} - 18 x + 5$
157352	求顶点式	f(x)=-3x^2-12x-9	$f (x) = - 3 x^{2} - 12 x - 9$
157353	求顶点式	f(x)=3x^2-18x+2	$f (x) = 3 x^{2} - 18 x + 2$
157354	求顶点式	f(x)=3x^2+6x+3	$f (x) = 3 x^{2} + 6 x + 3$
157355	求顶点式	f(x)=3x^2+6x+4	$f (x) = 3 x^{2} + 6 x + 4$
157356	求顶点式	f(x)=3x^2-12x+1	$f (x) = 3 x^{2} - 12 x + 1$
157357	求顶点式	f(x)=3x^2-12x+12	$f (x) = 3 x^{2} - 12 x + 12$
157358	求顶点式	f(x)=-2x^2+8x-6	$f (x) = - 2 x^{2} + 8 x - 6$
157359	求顶点式	f(x)=2x^2-12x+20	$f (x) = 2 x^{2} - 12 x + 20$
157360	求顶点式	f(x)=-2x^2-12x-14	$f (x) = - 2 x^{2} - 12 x - 14$
157361	求顶点式	f(x)=-2x^2-16x-37	$f (x) = - 2 x^{2} - 16 x - 37$
157362	求顶点式	f(x)=-2x^2-12x-17	$f (x) = - 2 x^{2} - 12 x - 17$
157363	求顶点式	f(x)=2x^2-20x-3	$f (x) = 2 x^{2} - 20 x - 3$
157364	求顶点式	f(x)=2x^2-20x+52	$f (x) = 2 x^{2} - 20 x + 52$
157365	求顶点式	f(x)=2x^2-8x+10	$f (x) = 2 x^{2} - 8 x + 10$
157366	求顶点式	f(x)=-2x^2-4x-3	$f (x) = - 2 x^{2} - 4 x - 3$
157367	求顶点式	f(x)=-2x^2-8x-9	$f (x) = - 2 x^{2} - 8 x - 9$
157368	求顶点式	f(x)=2x^2-8x-3	$f (x) = 2 x^{2} - 8 x - 3$
157369	求顶点式	f(x)=-2x^2-20x-53	$f (x) = - 2 x^{2} - 20 x - 53$
157370	求顶点式	f(x)=2x^2-3x+6	$f (x) = 2 x^{2} - 3 x + 6$
157371	求顶点式	f(x)=2x^2-3x+7	$f (x) = 2 x^{2} - 3 x + 7$
157372	求顶点式	f(x)=x^2+10x+11	$f (x) = x^{2} + 10 x + 11$
157373	求顶点式	f(x)=7+10x+x^2	$f (x) = 7 + 10 x + x^{2}$
157374	求顶点式	f(x)=8x^2+8x-12	$f (x) = 8 x^{2} + 8 x - 12$
157375	求顶点式	f(x)=5x^2+20x-16	$f (x) = 5 x^{2} + 20 x - 16$
157376	求顶点式	f(x)=4x^2-8x+8	$f (x) = 4 x^{2} - 8 x + 8$
157377	求顶点式	f(x)=4x^2-8x+3	$f (x) = 4 x^{2} - 8 x + 3$
157378	求顶点式	f(x)=4x^2+8x-1	$f (x) = 4 x^{2} + 8 x - 1$
157379	求顶点式	f(x)=-4x^2-12x+2	$f (x) = - 4 x^{2} - 12 x + 2$
157380	求顶点式	f(x)=-x^2+10x-23	$f (x) = - x^{2} + 10 x - 23$
157381	求顶点式	f(x)=x^2+10x+19	$f (x) = x^{2} + 10 x + 19$
157382	求顶点式	f(x)=x^2+10x+5	$f (x) = x^{2} + 10 x + 5$
157383	求顶点式	f(x)=3x^2-3x+5	$f (x) = 3 x^{2} - 3 x + 5$
157384	求顶点式	f(x)=-3x^2-30x-71	$f (x) = - 3 x^{2} - 30 x - 71$
157385	求顶点式	f(x)=4x^2-4x+4	$f (x) = 4 x^{2} - 4 x + 4$
157386	求顶点式	f(x)=4x^2-4x-8	$f (x) = 4 x^{2} - 4 x - 8$
157387	求顶点式	f(x)=-4x^2+12x-9	$f (x) = - 4 x^{2} + 12 x - 9$
157388	求顶点式	f(x)=-3x^2-9x+23	$f (x) = - 3 x^{2} - 9 x + 23$
157389	求顶点式	f(x)=3x^2-6x+8	$f (x) = 3 x^{2} - 6 x + 8$
157390	求顶点式	f(x)=3x^2-6x-2	$f (x) = 3 x^{2} - 6 x - 2$
157391	求顶点式	f(x)=x^2+2x+4	$f (x) = x^{2} + 2 x + 4$
157392	求顶点式	f(x)=x^2+16x+71	$f (x) = x^{2} + 16 x + 71$
157393	求顶点式	f(x)=x^2+2x-39	$f (x) = x^{2} + 2 x - 39$
157394	求顶点式	f(x)=x^2+2x-9	$f (x) = x^{2} + 2 x - 9$
157395	求顶点式	f(x)=-x^2+4x+5	$f (x) = - x^{2} + 4 x + 5$
157396	求顶点式	f(x)=-x^2+4x+2	$f (x) = - x^{2} + 4 x + 2$
157397	求顶点式	f(x)=-x^2+4x+3	$f (x) = - x^{2} + 4 x + 3$
157398	求顶点式	f(x)=x^2+5x+3	$f (x) = x^{2} + 5 x + 3$
157399	求顶点式	f(x)=-x^2+4x-7	$f (x) = - x^{2} + 4 x - 7$
157400	求顶点式	f(x)=-x^2+4x-2	$f (x) = - x^{2} + 4 x - 2$