Question

Explicatii si rezolvare ​

Answer 1

1.

$6 - x \geqslant 1$

<=mai mic sau egal

x<6-1

x<5

Elementele multimii A={0;1;2;3;4;5}

Suma: 0+1+2+3+4+5=3+3+9=15

2. 5/6=5:6

5:6=0,8(3)