Mathematics, 05.05.2020 06:11 jennsou
Determine if the statement is true or false, and justify your answer. You may assume that A and B are n Γ n matrices. If A and B are diagonal matrices, then so is A β B. True. If i β j, then Aij = Bij = 0, so (A β B)ij = 0, and A β B is diagonal. True. If i = j, then Aij = Bij = 0, so (A β B)ij = 0, and A β B is diagonal. False. If i = j, then (A β B)ij = Aij β Bij may not be zero, so A β B is not necessarily diagonal. False. If i β j, then (A β B)ij = Aij β Bij may not be zero, so A β B is not necessarily diagonal. False. If i β j, then Aij = βBij, so (A β B)ij = 2Aij, and A β B is not diagonal.
Answers: 1
Mathematics, 21.06.2019 16:30
We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be
Answers: 1
Mathematics, 21.06.2019 20:20
Select the correct answer. what is the exact value of sin (157.5Β°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)
Answers: 3
Mathematics, 21.06.2019 20:30
What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?
Answers: 2
Mathematics, 22.06.2019 00:00
The statements below can be used to prove that the triangles are similar. ? β³abc ~ β³xyz by the sss similarity theorem. which mathematical statement is missing? β b β
β y β b β
β z
Answers: 3
Determine if the statement is true or false, and justify your answer. You may assume that A and B ar...
Mathematics, 12.03.2020 22:57
Mathematics, 12.03.2020 22:57
Mathematics, 12.03.2020 22:57
Mathematics, 12.03.2020 22:57
Computers and Technology, 12.03.2020 22:57