Question

rapid va rog,am facut poza la ex!​

Answer 1

Explicație pas cu pas:

4n-1€D 15 in Z =>

4n-1€{-15,-5,-3,-1,1,3,5,15} =>

4n€{-14,-4,-2,0,2,4,6,16} =>

n€{-14/4,-1,-2/4,0,2/4,1,6/4,4} dar cum n€N => n€{0,1,4}