Question

Cele patru exerciții.Dau puncte multe!

Answer 1

1) x+5=1⇒ x=1-5= -4

2) (-3,0)

3) (4√3)² = 48   (3√5)²= 45⇒ 4√3 >3√5

1) {-8,-7,-6,....4}

S = -8-7-6-5-4-3-2-1+1+2+3+4= -8-7-6-5=-15-11=-26