Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
1001	Find Reduced Row Echelon Form	[[1,0,2],[-1,1,3]]	$[\begin{array}{c} 1 & 0 & 2 \\ - 1 & 1 & 3 \end{array}]$
1002	Find Reduced Row Echelon Form	[[1,0,6],[0,1,5]]	$[\begin{array}{c} 1 & 0 & 6 \\ 0 & 1 & 5 \end{array}]$
1003	Find Reduced Row Echelon Form	[[1,0,-12],[0,1,2],[0,0,0]]	$[\begin{array}{c} 1 & 0 & - 12 \\ 0 & 1 & 2 \\ 0 & 0 & 0 \end{array}]$
1004	Find Reduced Row Echelon Form	[[1,1,2,3,1],[2,1,3,4,1],[3,1,4,5,2]]	$[\begin{array}{c} 1 & 1 & 2 & 3 & 1 \\ 2 & 1 & 3 & 4 & 1 \\ 3 & 1 & 4 & 5 & 2 \end{array}]$
1005	Find Reduced Row Echelon Form	[[1,1,5],[3,2,12]]	$[\begin{array}{c} 1 & 1 & 5 \\ 3 & 2 & 12 \end{array}]$
1006	Find Reduced Row Echelon Form	[[1,2,4],[2,4,-8]]	$[\begin{array}{c} 1 & 2 & 4 \\ 2 & 4 & - 8 \end{array}]$
1007	Find the Inverse	[[1,2],[2,-1]]	$[\begin{array}{c} 1 & 2 \\ 2 & - 1 \end{array}]$
1008	Find the Inverse	[[2,-1,-2],[-4,2,8],[6,-2,-1]]	$[\begin{array}{c} 2 & - 1 & - 2 \\ - 4 & 2 & 8 \\ 6 & - 2 & - 1 \end{array}]$
1009	Find the Inverse	[[2,-1],[-1,1/2]]	$[\begin{array}{c} 2 & - 1 \\ - 1 & \frac{1}{2} \end{array}]$
1010	Find the Inverse	[[2,-10,-4],[2,6,0],[-3,18,5]]	$[\begin{array}{c} 2 & - 10 & - 4 \\ 2 & 6 & 0 \\ - 3 & 18 & 5 \end{array}]$
1011	Find the Inverse	[[2,-3],[-3,5]]	$[\begin{array}{c} 2 & - 3 \\ - 3 & 5 \end{array}]$
1012	Find the Inverse	[[2,-5,-2],[0,0,-1],[1,-3,1]]	$[\begin{array}{c} 2 & - 5 & - 2 \\ 0 & 0 & - 1 \\ 1 & - 3 & 1 \end{array}]$
1013	Find the Inverse	[[3,2,1],[3,1,2],[2,1,1]]	$[\begin{array}{c} 3 & 2 & 1 \\ 3 & 1 & 2 \\ 2 & 1 & 1 \end{array}]$
1014	Find the Inverse	[[-3,-5],[6,10]]	$[\begin{array}{c} - 3 & - 5 \\ 6 & 10 \end{array}]$
1015	Find the Inverse	[[4,3],[3,4]]	$[\begin{array}{c} 4 & 3 \\ 3 & 4 \end{array}]$
1016	Find the Inverse	[[-7,-1,5],[0,4,2],[8,3,5]]	$[\begin{array}{c} - 7 & - 1 & 5 \\ 0 & 4 & 2 \\ 8 & 3 & 5 \end{array}]$
1017	Find the Inverse	[[2,-7],[-1,4]]	$[\begin{array}{c} 2 & - 7 \\ - 1 & 4 \end{array}]$
1018	Find the Inverse	[[8,-4],[10,-5]]	$[\begin{array}{c} 8 & - 4 \\ 10 & - 5 \end{array}]$
1019	Find the Inverse	[[2,-4],[-4,9]]	$[\begin{array}{c} 2 & - 4 \\ - 4 & 9 \end{array}]$
1020	Find Reduced Row Echelon Form	[[0,1,3],[1,0,5]]	$[\begin{array}{c} 0 & 1 & 3 \\ 1 & 0 & 5 \end{array}]$
1021	Find Reduced Row Echelon Form	[[0.625,-0.5,1,0],[-1,1,0,1]]	$[\begin{array}{c} 0.625 & - 0.5 & 1 & 0 \\ - 1 & 1 & 0 & 1 \end{array}]$
1022	Find Reduced Row Echelon Form	[[0.75,0.15,0.10],[0.25,0.65,0.10],[0.10,0.20,0.70]]	$[\begin{array}{c} 0.75 & 0.15 & 0.1 \\ 0.25 & 0.65 & 0.1 \\ 0.1 & 0.2 & 0.7 \end{array}]$
1023	Find Reduced Row Echelon Form	a=[[2,-3],[-9,0],[8,9]]	$a = [\begin{array}{c} 2 & - 3 \\ - 9 & 0 \\ 8 & 9 \end{array}]$
1024	Find the Inverse	[[3,1],[4,2]]	$[\begin{array}{c} 3 & 1 \\ 4 & 2 \end{array}]$
1025	Find Reduced Row Echelon Form	-2[[3,-1,0],[-2,1,3],[0,-1,-2]]	$- 2 [\begin{array}{c} 3 & - 1 & 0 \\ - 2 & 1 & 3 \\ 0 & - 1 & - 2 \end{array}]$
1026	Find Reduced Row Echelon Form	[[-2/3,1,-1/3,0],[-1/3,-2/3,1,0],[1,-1/3,-2/3,0]]	$[\begin{array}{c} - \frac{2}{3} & 1 & - \frac{1}{3} & 0 \\ - \frac{1}{3} & - \frac{2}{3} & 1 & 0 \\ 1 & - \frac{1}{3} & - \frac{2}{3} & 0 \end{array}]$
1027	Find Reduced Row Echelon Form	[[3,2,1,3],[1,-2,1,5]]	$[\begin{array}{c} 3 & 2 & 1 & 3 \\ 1 & - 2 & 1 & 5 \end{array}]$
1028	Find Reduced Row Echelon Form	[[3,-2,1,6],[3,1,-1,-4],[-1,2,-2,-8]]	$[\begin{array}{c} 3 & - 2 & 1 & 6 \\ 3 & 1 & - 1 & - 4 \\ - 1 & 2 & - 2 & - 8 \end{array}]$
1029	Find Reduced Row Echelon Form	[[2,2,6],[-9,1,4],[1,2,2]]	$[\begin{array}{c} 2 & 2 & 6 \\ - 9 & 1 & 4 \\ 1 & 2 & 2 \end{array}]$
1030	Find Reduced Row Echelon Form	[[2,3,2],[1,3,-2],[1,-1,3]]	$[\begin{array}{c} 2 & 3 & 2 \\ 1 & 3 & - 2 \\ 1 & - 1 & 3 \end{array}]$
1031	Find Reduced Row Echelon Form	[[3,0,9],[-2,4,12]]	$[\begin{array}{c} 3 & 0 & 9 \\ - 2 & 4 & 12 \end{array}]$
1032	Find Reduced Row Echelon Form	[[5,27,2,17],[2,11,3,-5],[1,5,-4,8]]	$[\begin{array}{c} 5 & 27 & 2 & 17 \\ 2 & 11 & 3 & - 5 \\ 1 & 5 & - 4 & 8 \end{array}]$
1033	Find Reduced Row Echelon Form	[[7,5,-1,0],[9,-1,2,1],[16,4,1,1]]	$[\begin{array}{c} 7 & 5 & - 1 & 0 \\ 9 & - 1 & 2 & 1 \\ 16 & 4 & 1 & 1 \end{array}]$
1034	Find Reduced Row Echelon Form	[[23,10,690],[26,18,473]]	$[\begin{array}{c} 23 & 10 & 690 \\ 26 & 18 & 473 \end{array}]$
1035	Find Reduced Row Echelon Form	[[2,-3,2,2.2],[1,1,-1,0],[3,2,-4,-5.5]]	$[\begin{array}{c} 2 & - 3 & 2 & 2.2 \\ 1 & 1 & - 1 & 0 \\ 3 & 2 & - 4 & - 5.5 \end{array}]$
1036	Find Reduced Row Echelon Form	[[3,-2,1,16],[0,1,1,7]]	$[\begin{array}{c} 3 & - 2 & 1 & 16 \\ 0 & 1 & 1 & 7 \end{array}]$
1037	Find Reduced Row Echelon Form	[[90000,300,1,32],[250000,400,1,40],[1547536,1244,1,50]]	$[\begin{array}{c} 90000 & 300 & 1 & 32 \\ 250000 & 400 & 1 & 40 \\ 1547536 & 1244 & 1 & 50 \end{array}]$
1038	Transpose	[[1,0,1,2],[0,1,5,2],[0,0,0,0]]	$[\begin{array}{c} 1 & 0 & 1 & 2 \\ 0 & 1 & 5 & 2 \\ 0 & 0 & 0 & 0 \end{array}]$
1039	Transpose	[[1,5,6],[4,9,5],[1,2,3]]	$[\begin{array}{c} 1 & 5 & 6 \\ 4 & 9 & 5 \\ 1 & 2 & 3 \end{array}]$
1040	Transpose	[[3,2,8,1],[3,8,3,9],[12,6,2,4],[9,1,6,15]]	$[\begin{array}{c} 3 & 2 & 8 & 1 \\ 3 & 8 & 3 & 9 \\ 12 & 6 & 2 & 4 \\ 9 & 1 & 6 & 15 \end{array}]$
1041	Transpose	[[1,-1,-3],[0,0,0]]	$[\begin{array}{c} 1 & - 1 & - 3 \\ 0 & 0 & 0 \end{array}]$
1042	Find the Median	12 , 14 , 25 , 10 , 25 , 15 , 11	$12$ , $14$ , $25$ , $10$ , $25$ , $15$ , $11$
1043	Find the Eigenvalues	[[-3,-5],[2,0]]	$[\begin{array}{c} - 3 & - 5 \\ 2 & 0 \end{array}]$
1044	Transpose	[[6,2,-8,4]]	$[\begin{array}{c} 6 & 2 & - 8 & 4 \end{array}]$
1045	Find the Mean	10 , 8 , 6 , 12 , 14	$10$ , $8$ , $6$ , $12$ , $14$
1046	Find the Number of Possibilities	15 choose 1	${}_{15}C_{1}$
1047	Find the Number of Possibilities	14 choose 9	${}_{14}C_{9}$
1048	Find the Number of Possibilities	12 permute 3	${}_{12}P_{3}$
1049	Find the Number of Possibilities	14 permute 2	${}_{14}P_{2}$
1050	Find the Number of Possibilities	14 choose 3	${}_{14}C_{3}$
1051	Find the Number of Possibilities	13 permute 7	${}_{13}P_{7}$
1052	Find the Number of Possibilities	13 permute 9	${}_{13}P_{9}$
1053	Find the Number of Possibilities	14 choose 2	${}_{14}C_{2}$
1054	Find the Number of Possibilities	13 choose 10	${}_{13}C_{10}$
1055	Find the Number of Possibilities	13 choose 9	${}_{13}C_{9}$
1056	Find the Number of Possibilities	14 choose 0	${}_{14}C_{0}$
1057	Find the Number of Possibilities	15 permute 4	${}_{15}P_{4}$
1058	Find the Number of Possibilities	14 permute 5	${}_{14}P_{5}$
1059	Find the Number of Possibilities	15 permute 15	${}_{15}P_{15}$
1060	Find the Number of Possibilities	16 choose 1	${}_{16}C_{1}$
1061	Find the Number of Possibilities	16 choose 10	${}_{16}C_{10}$
1062	Find the Number of Possibilities	16 choose 14	${}_{16}C_{14}$
1063	Find the Number of Possibilities	16 choose 16	${}_{16}C_{16}$
1064	Find the Number of Possibilities	16 choose 2	${}_{16}C_{2}$
1065	Find the Number of Possibilities	17 choose 1	${}_{17}C_{1}$
1066	Find the Number of Possibilities	17 choose 11	${}_{17}C_{11}$
1067	Find the Number of Possibilities	17 choose 13	${}_{17}C_{13}$
1068	Find the Number of Possibilities	16 permute 3	${}_{16}P_{3}$
1069	Find the Number of Possibilities	16 choose 8	${}_{16}C_{8}$
1070	Find the Number of Possibilities	17 choose 7	${}_{17}C_{7}$
1071	Find the Number of Possibilities	18 choose 11	${}_{18}C_{11}$
1072	Find the Number of Possibilities	0 choose 4	${}_{0}C_{4}$
1073	Find the Number of Possibilities	100 choose 2	${}_{100}C_{2}$
1074	Find the Number of Possibilities	10 choose 0	${}_{10}C_{0}$
1075	Find the Number of Possibilities	11C^2*(49C^3)	$11 C^{2} \cdot (49 C^{3})$
1076	Find the Number of Possibilities	10C^9*(23C^21)	$10 C^{9} \cdot (23 C^{21})$
1077	Find the Number of Possibilities	(5 permute 3)/(12P^4)	$\frac{{}_{5}P_{3}}{12 P^{4}}$
1078	Find the Number of Possibilities	11 permute 0	${}_{11}P_{0}$
1079	Find the Number of Possibilities	11 choose 10	${}_{11}C_{10}$
1080	Find the Number of Possibilities	11 choose 11	${}_{11}C_{11}$
1081	Find the Number of Possibilities	10 permute 1	${}_{10}P_{1}$
1082	Find the Number of Possibilities	18 choose 4	${}_{18}C_{4}$
1083	Find the Number of Possibilities	19 choose 3	${}_{19}C_{3}$
1084	Find the Number of Possibilities	19 choose 4	${}_{19}C_{4}$
1085	Find the Number of Possibilities	19 choose 5	${}_{19}C_{5}$
1086	Find the Number of Possibilities	18 choose 6	${}_{18}C_{6}$
1087	Find the Number of Possibilities	19 choose 7	${}_{19}C_{7}$
1088	Find the Number of Possibilities	19 permute 3	${}_{19}P_{3}$
1089	Find the Number of Possibilities	1 choose 2	${}_{1}C_{2}$
1090	Find the Number of Possibilities	17 choose 6	${}_{17}C_{6}$
1091	Find the Number of Possibilities	200 choose 2	${}_{200}C_{2}$
1092	Find the Number of Possibilities	1 permute 2	${}_{1}P_{2}$
1093	Find the Number of Possibilities	16 choose 3	${}_{16}C_{3}$
1094	Find the Number of Possibilities	20 choose 20	${}_{20}C_{20}$
1095	Find the Number of Possibilities	23 choose 23	${}_{23}C_{23}$
1096	Find the Number of Possibilities	24 choose 3	${}_{24}C_{3}$
1097	Find the Number of Possibilities	25 choose 3	${}_{25}C_{3}$
1098	Find the Number of Possibilities	21 choose 17	${}_{21}C_{17}$
1099	Find the Number of Possibilities	22 permute 3	${}_{22}P_{3}$
1100	Find the Number of Possibilities	25 permute 20	${}_{25}P_{20}$