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Question
Compute the following:
`[(a^2 + b^2, b^2 + c^2),(a^2 + c^2, a^2 + b^2)] + [(2ab, 2bc),(-2ac, -2ab)]`
Sum
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Solution
`[(a^2 + b^2, b^2 + c^2), (a^2 + c^2, a^2 + b^2)] + [(2ab, 2bc),(-2ac, -2ab)]`
= `[(a^2 + b^2 + 2ab, b^2 + c^2 + 2bc), (a^2 + c^2 - 2ac, a^2 + b^2 - 2ab)]`
= `[((a + b)^2, (b + c)^2), ((a - c)^2, (a - b)^2)]`
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Chapter 3: Matrices - EXERCISE 3.2 [Page 58]
