Răspunsuri

  • Utilizator Brainly
2014-02-27T14:02:24+02:00
 a_{n+1}- a_{n}=d,  a_{n}= a_{1}+(n-1)d
21-15=15-9=9-3=6 care reprezinta ratia d; d=6;
a_{33}=3+6*32=195
2014-02-27T14:02:59+02:00
3,9,15,21,27,33,39,45,51,57,63,69,75,81,87,93,99,105,111,117,123,129,135,141,147,153,159,165,171,177,183,189,195.
Pati, tu ai 10 ani? intrebarea e serioasa! daca acolo se cerea termenul de rang 3300 ce faceai?