Question

adevarat sau fals
numerele a si b sint intregi.
a)daca a=batunci |a|=|b|
b)|a|=|b|, atunci a=b
c)daca a= -b atunci |a|=|b|
d)|a|=|b|, atunci a=b sau a= -b.

Answer 1

a) fals
b)adevarat
c)fals
d) fals ( pt ca |a| = plus minus a ...si |b| = plus minus b )