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Given `A = [(3,-2),(-1,4)] B = [(6),(1)], C = [(-4),(5)] and D = [(2),(2)]` Find Ab + 2c - 4d - ICSE Class 10 - Mathematics

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Question

Given `A = [(3,-2),(-1,4)] B = [(6),(1)], C = [(-4),(5)] and D = [(2),(2)]` Find AB + 2C - 4D

Solution

AB = `[(3,-2),(-1,4)][(6),(1)] = [(18-2),(-6+4)] = [(16),(-2)]`

`AB + 2C - 4D = [(16),(-2)] + [(-8),(10)] - [(8),(8)] = [(0),(0)]`

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Solution Given `A = [(3,-2),(-1,4)] B = [(6),(1)], C = [(-4),(5)] and D = [(2),(2)]` Find Ab + 2c - 4d Concept: Matrices Examples.
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