Question

Exercitiul 1 va rog! Va dau coroana si 5 stele

Answer 1

x=1=2=3=4=5

y=4x=4=8=12=16=20

z=0,5y=2=4=6=8=10

a) {1,2,3,4,5}d.p{4,8,12,16,20}

1/4=2/8=3/12=4/16=5/20

1/4=1/4=1/4=1/4=1/4 deci e adevarat.

b) {4,8,12,16,20}d.p{2,4,6,8,10}

4/2=8/4=12/6=16/8=20/10

2=2=2=2=2 deci e adevarat.

c) {1,2,3,4,5}d.p{2,4,6,8,10}

1/2=2/4=3/6=4/8=5/10

sunt d.p deoarece 1/2=1/2=1/2=1/2=1/2.