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Question
If A = `[(3, 1),(-1, 2)], B = [(1, 0),(0, 2)],` find B2.
Sum
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Solution
B = `[(1, 0),(0, 2)]`
B2 = `[(1, 0),(0, 2)] [(1, 0),(0, 2)]`
= `[(1 xx 1 + 0 xx 0, 1 xx 0 + 0 xx 2),(0 xx 1 + 2 xx 0, 0 xx 0 + 2 xx 2)]`
= `[(1, 0),(0, 4)]`
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Chapter 8: Matrices - Exercise 8C [Page 164]
