Question: Find (a, b) (c, d) = (ac - bd, ad + bc). a. (2, 3) (4, -2) b. (2, -1) (-2, 3)

Find (a, b) · (c, d) = (ac - bd, ad + bc).

a. (2, 3) · (4, -2)

b. (2, -1) · (-2, 3)

c. (-1, -2) · (2, 1)

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