Question

Fie mulţimile M={3,4,5}, N={3}, P={0,1}. Determinaţi mulţimile: MXN, NXM, MXP, NXP precum şi cardinalele lor.

Answer 1

Explicație pas cu pas:

M × N = {(3,3),(4,3),(5,3)}

N × M = {(3,3),(3,4),(3,5)}

M × P = {(3,0),(3,1),(4,0),(4,1),(5,0),(5,1)}

N × P = {(3,0),(3,1)}

card M = 3

card N = 1

card P = 2