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Question
If A = `[(0, 4, 9),(8, 3, 7)]`, B = `[(7, 3, 8),(1, 4, 9)]` find the value of B – 5A
Solution
B – 5A = `[(7, 3, 8),(1, 4, 9)] - 5[(0, 4, 9),(8, 3, 7)]`
= `[(7, 3, 8),(1, 4, 9)] - [(0, 20, 45),(40, 15, 35)]`
= `[(7, -17, -37),(-39, -11, -26)]`
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