Question

Rezolvati in multimea nr naturale inecuatiile
a) x-1,37 < 5,3
b)×+2,47<5,3
c) x-2,37<2,3^2

Answer 1

a) x<5,3+1,37
    x<6,67
    x={0,1,2,3,4,5,6)
b)x<5,3-2,47
   x<2.83
   x={0,1,2}
c)x-2,37<5,29 (2,3*2,3)
   x<5,29+2,37
   x<7,66
   x={0,1,2,3,4,5,6,7}

Answer 2

a) x-1,37<5,3
     x<1,37+5,30
     x<6,67
     x ∈{0,1,2,3,4,5,6}

b) x+2,47<5,3
    x<5,30-2,47
    x<2,83
    x∈{0,1,2}

c) x-2,37<2,3^2
    x-2,37<2,3*2,3
    x-2,37<5,29
    x<2,37+5,29
    x<7,66
    x∈{0,1,2,3,4,5,6,7}