Mathematics, 21.02.2020 01:03 kcarstensen59070
Determine if the statement is true or false, and justify your answer. You may assume that A and B are n × n matrices. If A and B are diagonal matrices, then so is A − B. True. If i ≠ j, then Aij = Bij = 0, so (A − B)ij = 0, and A − B is diagonal. True. If i = j, then Aij = Bij = 0, so (A − B)ij = 0, and A − B is diagonal. False. If i ≠ j, then Aij = −Bij, so (A − B)ij = 2Aij, and A − B is not diagonal. False. If i = j, then (A − B)ij = Aij − Bij may not be zero, so A − B is not necessarily diagonal. False. If i ≠ j, then (A − B)ij = Aij − Bij may not be zero, so A − B is not necessarily diagon
Answers: 2
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Yvaries inversely as x. y =12 when x=5. find y when x=4
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Determine if the statement is true or false, and justify your answer. You may assume that A and B ar...
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