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a fost răspuns

primii cinci termeni ai progresiei aritmetice:
1) a1= 1/2 ,r= 1/3
2) a1= 0,1 , r= 0,2

Răspuns :

1) 1/2; 5/6; 7/6; 9/6; 11/6.

1/2+1/3=3/6+2/6=5/6

5/6+1/3=15/18+6/18=21/18=7/6

7/6+1/3=21/18+6/18=27/18=9/6

9/6+1/3=27/18+6/18=33/18=11/6


2) 0.1; 0.3; 0.5; 0.7; 0.9 .

0.1+0.2=0.3

0.3+0.2=0.5

0.5+0.2=0.7

0.7+0.2=0.9

Alte intrebari