4. Let A %3D {a, b, c}, В %3D {x, у}, and C %3D {0, 1}. Find a) АхВх С b) СхВхА с) СхАх В d) ВxВxВ.

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Q: а. х39,у%3D 13;B 7, 15 b. х%313, у%3D9; 7, 15 х3 9, у%3D13;B 11, 20 с. d. x=13, y = 9; 11, 11

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