Question

Rezolvati in multimea numerelor naturale inecuatiile:
a) x-1,37<5,3;      b) x+2,47<_5,3(linia aia este dedesupt.);     c) x-2,37<_5,29.

Answer 1

a)x-1,37<5,3   <=>   x< 6.67    => X poate fi doar natural, de unde x = {0, 1, 2, 3, 4, 5, 6}

b)x+2,47<_5,3   <=> x<_ 2.83   => x={0, 1, 2}

c) x-2,37<_5,29  <=> x<_ 7.66  => x={0,1,2,3,4,5,6,7}

Atat! :D