Mathway | 热门问题

热门问题

等级	主题	问题	格式化的问题
157201	求顶点式	g(x)=2x^2-8x+9	$g (x) = 2 x^{2} - 8 x + 9$
157202	求顶点式	g(x)=-2x^2-8x-11	$g (x) = - 2 x^{2} - 8 x - 11$
157203	求出行列式	[[-1,1],[-2,-3]]	$[\begin{array}{c} - 1 & 1 \\ - 2 & - 3 \end{array}]$
157204	求出行列式	[[1,1],[-3,1]]	$[\begin{array}{c} 1 & 1 \\ - 3 & 1 \end{array}]$
157205	求出行列式	[[-1,1],[-3,3]]	$[\begin{array}{c} - 1 & 1 \\ - 3 & 3 \end{array}]$
157206	求出行列式	[[1,1],[0,-2]]	$[\begin{array}{c} 1 & 1 \\ 0 & - 2 \end{array}]$
157207	求出行列式	[[-1,-1,2],[3,2,-1],[4,4,-8]]	$[\begin{array}{c} - 1 & - 1 & 2 \\ 3 & 2 & - 1 \\ 4 & 4 & - 8 \end{array}]$
157208	求出行列式	[[1,2,1],[1,-3,-2],[-1,5,1]]	$[\begin{array}{c} 1 & 2 & 1 \\ 1 & - 3 & - 2 \\ - 1 & 5 & 1 \end{array}]$
157209	求出行列式	[[1,0,1],[3,-1,-2],[-9,4,2]]	$[\begin{array}{c} 1 & 0 & 1 \\ 3 & - 1 & - 2 \\ - 9 & 4 & 2 \end{array}]$
157210	求出行列式	[[-1,0,4],[2,0,0],[-1,1,-1]]	$[\begin{array}{c} - 1 & 0 & 4 \\ 2 & 0 & 0 \\ - 1 & 1 & - 1 \end{array}]$
157211	求出行列式	[[0,x,x],[x,x^2,5],[x,4,-3]]	$[\begin{array}{c} 0 & x & x \\ x & x^{2} & 5 \\ x & 4 & - 3 \end{array}]$
157212	求出行列式	[[0,3,5],[5,5,2],[3,4,3]]	$[\begin{array}{c} 0 & 3 & 5 \\ 5 & 5 & 2 \\ 3 & 4 & 3 \end{array}]$
157213	求出行列式	[[1,0,0],[0,4,0],[0,0,5]]	$[\begin{array}{c} 1 & 0 & 0 \\ 0 & 4 & 0 \\ 0 & 0 & 5 \end{array}]$
157214	求出行列式	[[0,1,1],[-4,0,5],[0,2,0]]	$[\begin{array}{c} 0 & 1 & 1 \\ - 4 & 0 & 5 \\ 0 & 2 & 0 \end{array}]$
157215	求出行列式	[[0,0.5],[1.5,2]]	$[\begin{array}{c} 0 & 0.5 \\ 1.5 & 2 \end{array}]$
157216	求出行列式	[[0,-1],[17,4]]	$[\begin{array}{c} 0 & - 1 \\ 17 & 4 \end{array}]$
157217	求出行列式	[[0,2,2],[4,-4,0],[-2,-16,-6]]	$[\begin{array}{c} 0 & 2 & 2 \\ 4 & - 4 & 0 \\ - 2 & - 16 & - 6 \end{array}]$
157218	求出行列式	[[0,1,2],[-1,2,1]]	$[\begin{array}{c} 0 & 1 & 2 \\ - 1 & 2 & 1 \end{array}]$
157219	求出行列式	([[13/49,-4/7],[-9/14,5/14]])÷2	$[\begin{array}{c} \frac{13}{49} & - \frac{4}{7} \\ - \frac{9}{14} & \frac{5}{14} \end{array}] \div 2$
157220	求出行列式	[[5/2,3/4],[20,4]]	$[\begin{array}{c} \frac{5}{2} & \frac{3}{4} \\ 20 & 4 \end{array}]$
157221	求出行列式	[[0,0,1],[8,10,1],[1,4,1]]	$[\begin{array}{c} 0 & 0 & 1 \\ 8 & 10 & 1 \\ 1 & 4 & 1 \end{array}]$
157222	求出行列式	[[1,-5],[2,3]]	$[\begin{array}{c} 1 & - 5 \\ 2 & 3 \end{array}]$
157223	求出行列式	[[-1,-5,4],[-1,-4,3],[3,-1,-2]]	$[\begin{array}{c} - 1 & - 5 & 4 \\ - 1 & - 4 & 3 \\ 3 & - 1 & - 2 \end{array}]$
157224	求出行列式	[[-1,5,1],[2,4,-3],[0,0,0]]	$[\begin{array}{c} - 1 & 5 & 1 \\ 2 & 4 & - 3 \\ 0 & 0 & 0 \end{array}]$
157225	求出行列式	[[-1,4],[5,2]]	$[\begin{array}{c} - 1 & 4 \\ 5 & 2 \end{array}]$
157226	求出行列式	[[1,-3],[3,-9]]	$[\begin{array}{c} 1 & - 3 \\ 3 & - 9 \end{array}]$
157227	求出行列式	[[1,3],[5,2]]	$[\begin{array}{c} 1 & 3 \\ 5 & 2 \end{array}]$
157228	求出行列式	[[-1,3],[1,6]]	$[\begin{array}{c} - 1 & 3 \\ 1 & 6 \end{array}]$
157229	求出行列式	[[1,4,-1,4],[0,-1,-2,-1],[-1,-3,-7,-6],[-4,-1,-7,-7]]	$[\begin{array}{c} 1 & 4 & - 1 & 4 \\ 0 & - 1 & - 2 & - 1 \\ - 1 & - 3 & - 7 & - 6 \\ - 4 & - 1 & - 7 & - 7 \end{array}]$
157230	求出行列式	[[10,0],[0,10]]	$[\begin{array}{c} 10 & 0 \\ 0 & 10 \end{array}]$
157231	求出行列式	[[1,7],[1,1]]	$[\begin{array}{c} 1 & 7 \\ 1 & 1 \end{array}]$
157232	求出行列式	[[14,-13,0],[3,8,-1],[-10,-2,5]]	$[\begin{array}{c} 14 & - 13 & 0 \\ 3 & 8 & - 1 \\ - 10 & - 2 & 5 \end{array}]$
157233	求出行列式	[[1,3,7],[2,0,8],[0,2,2]]	$[\begin{array}{c} 1 & 3 & 7 \\ 2 & 0 & 8 \\ 0 & 2 & 2 \end{array}]$
157234	求出行列式	[[-1,2],[0,4]]	$[\begin{array}{c} - 1 & 2 \\ 0 & 4 \end{array}]$
157235	求出行列式	[[1,2],[1,-3]]	$[\begin{array}{c} 1 & 2 \\ 1 & - 3 \end{array}]$
157236	求出行列式	[[1,2,3],[3,2,1],[7,8,9]]	$[\begin{array}{c} 1 & 2 & 3 \\ 3 & 2 & 1 \\ 7 & 8 & 9 \end{array}]$
157237	求出行列式	[[-1,2,-2],[6,-2,0],[-1,4,-3]]	$[\begin{array}{c} - 1 & 2 & - 2 \\ 6 & - 2 & 0 \\ - 1 & 4 & - 3 \end{array}]$
157238	求出行列式	[[1,2,5],[2,1,3],[1,2,5]]	$[\begin{array}{c} 1 & 2 & 5 \\ 2 & 1 & 3 \\ 1 & 2 & 5 \end{array}]$
157239	求出行列式	[[1,2,5],[2,5,4],[1,2,5]]	$[\begin{array}{c} 1 & 2 & 5 \\ 2 & 5 & 4 \\ 1 & 2 & 5 \end{array}]$
157240	求出行列式	[[1,-2],[-2,-3]]	$[\begin{array}{c} 1 & - 2 \\ - 2 & - 3 \end{array}]$
157241	求出行列式	[[1,2],[-2,3]]	$[\begin{array}{c} 1 & 2 \\ - 2 & 3 \end{array}]$
157242	求出行列式	[[2,0,0],[9,-5,0],[-5,5,4]]	$[\begin{array}{c} 2 & 0 & 0 \\ 9 & - 5 & 0 \\ - 5 & 5 & 4 \end{array}]$
157243	求出行列式	[[2,0,1],[-5,1,0],[3,-1,1]]	$[\begin{array}{c} 2 & 0 & 1 \\ - 5 & 1 & 0 \\ 3 & - 1 & 1 \end{array}]$
157244	求出行列式	[[2,0,-2],[-7,1,5],[4,-2,0]]	$[\begin{array}{c} 2 & 0 & - 2 \\ - 7 & 1 & 5 \\ 4 & - 2 & 0 \end{array}]$
157245	求出行列式	[[-1,-8,9],[4,12,-7],[-10,3,2]]	$[\begin{array}{c} - 1 & - 8 & 9 \\ 4 & 12 & - 7 \\ - 10 & 3 & 2 \end{array}]$
157246	求出行列式	[[-1,8],[2,9]]	$[\begin{array}{c} - 1 & 8 \\ 2 & 9 \end{array}]$
157247	求出行列式	[[2,0,0],[0,1,0],[0,0,3]]	$[\begin{array}{c} 2 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 3 \end{array}]$
157248	求出行列式	[[2,0,0],[0,5,0],[0,0,4]]	$[\begin{array}{c} 2 & 0 & 0 \\ 0 & 5 & 0 \\ 0 & 0 & 4 \end{array}]$
157249	求出行列式	[[2,1,0],[0,-2,4],[0,1,-3]]	$[\begin{array}{c} 2 & 1 & 0 \\ 0 & - 2 & 4 \\ 0 & 1 & - 3 \end{array}]$
157250	求出行列式	[[2,-1],[3,5]]	$[\begin{array}{c} 2 & - 1 \\ 3 & 5 \end{array}]$
157251	求出行列式	[[-2,1],[-4,2]]	$[\begin{array}{c} - 2 & 1 \\ - 4 & 2 \end{array}]$
157252	求出行列式	[[2,1,7],[-5,6,0],[-4,3,1]]	$[\begin{array}{c} 2 & 1 & 7 \\ - 5 & 6 & 0 \\ - 4 & 3 & 1 \end{array}]$
157253	求出行列式	[[2,-1],[-5,4]]	$[\begin{array}{c} 2 & - 1 \\ - 5 & 4 \end{array}]$
157254	求出行列式	[[2,-1],[4,-2]]	$[\begin{array}{c} 2 & - 1 \\ 4 & - 2 \end{array}]$
157255	求出行列式	[[2,-3,-2],[-1,-4,-3],[-1,0,2]]	$[\begin{array}{c} 2 & - 3 & - 2 \\ - 1 & - 4 & - 3 \\ - 1 & 0 & 2 \end{array}]$
157256	求出行列式	[[-2,-3,-2],[2,0,4],[-3,-4,-2]]	$[\begin{array}{c} - 2 & - 3 & - 2 \\ 2 & 0 & 4 \\ - 3 & - 4 & - 2 \end{array}]$
157257	求出行列式	[[-2,4],[0,3]]	$[\begin{array}{c} - 2 & 4 \\ 0 & 3 \end{array}]$
157258	求出行列式	[[2,2,3],[6,6,3],[8,6,9]]	$[\begin{array}{c} 2 & 2 & 3 \\ 6 & 6 & 3 \\ 8 & 6 & 9 \end{array}]$
157259	求出行列式	[[2,2],[-1,4]]	$[\begin{array}{c} 2 & 2 \\ - 1 & 4 \end{array}]$
157260	求出行列式	[[2,2],[1,5]]	$[\begin{array}{c} 2 & 2 \\ 1 & 5 \end{array}]$
157261	求出行列式	[[2,-2],[4,3]]	$[\begin{array}{c} 2 & - 2 \\ 4 & 3 \end{array}]$
157262	求出行列式	[[2,3],[1,-1]]	$[\begin{array}{c} 2 & 3 \\ 1 & - 1 \end{array}]$
157263	求出行列式	[[-2,-3],[1,12]]	$[\begin{array}{c} - 2 & - 3 \\ 1 & 12 \end{array}]$
157264	求出行列式	[[3,-1],[3,5]]	$[\begin{array}{c} 3 & - 1 \\ 3 & 5 \end{array}]$
157265	求出行列式	[[3,-1],[3,-9]]	$[\begin{array}{c} 3 & - 1 \\ 3 & - 9 \end{array}]$
157266	求出行列式	[[3,-2,3],[3,-1,6],[6,-3,9]]	$[\begin{array}{c} 3 & - 2 & 3 \\ 3 & - 1 & 6 \\ 6 & - 3 & 9 \end{array}]$
157267	求出行列式	[[3,0,2],[0,4,x],[2x,1,-1]]=-x	$[\begin{array}{c} 3 & 0 & 2 \\ 0 & 4 & x \\ 2 x & 1 & - 1 \end{array}] = - x$
157268	求出行列式	[[3,-1,4],[2,-2,5],[4,-1,0]]	$[\begin{array}{c} 3 & - 1 & 4 \\ 2 & - 2 & 5 \\ 4 & - 1 & 0 \end{array}]$
157269	求出行列式	[[2,-5,1],[0,1,2],[0,0,-5]]	$[\begin{array}{c} 2 & - 5 & 1 \\ 0 & 1 & 2 \\ 0 & 0 & - 5 \end{array}]$
157270	求出行列式	[[2,-5],[2,2]]	$[\begin{array}{c} 2 & - 5 \\ 2 & 2 \end{array}]$
157271	求出行列式	[[2,5],[1,3]]	$[\begin{array}{c} 2 & 5 \\ 1 & 3 \end{array}]$
157272	求出行列式	[[2,-5],[4,3]]	$[\begin{array}{c} 2 & - 5 \\ 4 & 3 \end{array}]$
157273	求出行列式	[[2,-5],[5,3]]	$[\begin{array}{c} 2 & - 5 \\ 5 & 3 \end{array}]$
157274	求出行列式	[[2,-5],[6,2]]	$[\begin{array}{c} 2 & - 5 \\ 6 & 2 \end{array}]$
157275	求出行列式	[[2,-5],[8,3]]	$[\begin{array}{c} 2 & - 5 \\ 8 & 3 \end{array}]$
157276	求出行列式	[[2,-6],[2,3]]	$[\begin{array}{c} 2 & - 6 \\ 2 & 3 \end{array}]$
157277	求出行列式	[[2,-6],[5,2]]	$[\begin{array}{c} 2 & - 6 \\ 5 & 2 \end{array}]$
157278	求出行列式	[[2,-6],[5,3]]	$[\begin{array}{c} 2 & - 6 \\ 5 & 3 \end{array}]$
157279	求出行列式	[[2,-6],[6,2]]	$[\begin{array}{c} 2 & - 6 \\ 6 & 2 \end{array}]$
157280	求出行列式	[[2,-7],[2,2]]	$[\begin{array}{c} 2 & - 7 \\ 2 & 2 \end{array}]$
157281	求出行列式	[[2,-8],[2,2]]	$[\begin{array}{c} 2 & - 8 \\ 2 & 2 \end{array}]$
157282	求出行列式	[[2,-8],[5,2]]	$[\begin{array}{c} 2 & - 8 \\ 5 & 2 \end{array}]$
157283	求出行列式	[[3,2],[x,x]]	$[\begin{array}{c} 3 & 2 \\ x & x \end{array}]$
157284	求出行列式	[[3,2],[-5,9]]	$[\begin{array}{c} 3 & 2 \\ - 5 & 9 \end{array}]$
157285	求出行列式	[[3,-2],[6,3]]	$[\begin{array}{c} 3 & - 2 \\ 6 & 3 \end{array}]$
157286	求出行列式	[[3,-2],[5,2]]	$[\begin{array}{c} 3 & - 2 \\ 5 & 2 \end{array}]$
157287	求出行列式	[[3,2],[5,3]]	$[\begin{array}{c} 3 & 2 \\ 5 & 3 \end{array}]$
157288	求出行列式	[[-3,-4],[1,-1]]	$[\begin{array}{c} - 3 & - 4 \\ 1 & - 1 \end{array}]$
157289	求出行列式	[[3,-4],[4,2]]	$[\begin{array}{c} 3 & - 4 \\ 4 & 2 \end{array}]$
157290	求出行列式	[[4,0],[-6,0]]	$[\begin{array}{c} 4 & 0 \\ - 6 & 0 \end{array}]$
157291	求出行列式	[[-4,1,2],[5,0,-3],[-3,1,-4]]	$[\begin{array}{c} - 4 & 1 & 2 \\ 5 & 0 & - 3 \\ - 3 & 1 & - 4 \end{array}]$
157292	求出行列式	[[4,1,2],[-1,3,1],[3,-1,3]]	$[\begin{array}{c} 4 & 1 & 2 \\ - 1 & 3 & 1 \\ 3 & - 1 & 3 \end{array}]$
157293	求出行列式	[[-4,2],[5,-2]]	$[\begin{array}{c} - 4 & 2 \\ 5 & - 2 \end{array}]$
157294	求出行列式	[[4,2,6],[2,1,3],[-2,3,-4]]	$[\begin{array}{c} 4 & 2 & 6 \\ 2 & 1 & 3 \\ - 2 & 3 & - 4 \end{array}]$
157295	求出行列式	[[4,2],[2,1]]	$[\begin{array}{c} 4 & 2 \\ 2 & 1 \end{array}]$
157296	求出行列式	[[-4,0,2],[2,0,3],[1,2,2]]	$[\begin{array}{c} - 4 & 0 & 2 \\ 2 & 0 & 3 \\ 1 & 2 & 2 \end{array}]$
157297	求出行列式	[[4,0,3],[-7,3,0],[5,-3,3]]	$[\begin{array}{c} 4 & 0 & 3 \\ - 7 & 3 & 0 \\ 5 & - 3 & 3 \end{array}]$
157298	求出行列式	[[3,-9],[4,3]]	$[\begin{array}{c} 3 & - 9 \\ 4 & 3 \end{array}]$
157299	求出行列式	[[3,-5],[6,2]]	$[\begin{array}{c} 3 & - 5 \\ 6 & 2 \end{array}]$
157300	求出行列式	[[3,-5],[6,3]]	$[\begin{array}{c} 3 & - 5 \\ 6 & 3 \end{array}]$