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Exercise 3

Avg difficulty 3.0

Which products are defined?

  • (a)  3 ⁣× ⁣23\!\times\!2 times 2 ⁣× ⁣32\!\times\!3     (b)  2 ⁣× ⁣32\!\times\!3 times 3 ⁣× ⁣23\!\times\!2     (c)  2 ⁣× ⁣22\!\times\!2 times 3 ⁣× ⁣33\!\times\!3     (d)  3 ⁣× ⁣33\!\times\!3 times 2 ⁣× ⁣22\!\times\!2

Hefferon, Linear Algebra, Maps Between Spaces, Matrix Multiplication, Exercise 3

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Adapted from Linear Algebra © 2016 Jim Hefferon. Licensed under CC BY-SA 3.0 US. Source: Linear Algebra. Imported at revision df2262e.