Question

Vreau urgent raspuns la aceste siruri... TREBUIE SA SCRIU PRIMII 6 TERMENI$1) a_{1}=1 \\ a_{n+1} = a_{n}-1 \\ 2) a=1 \\ a_{n+1} = a_{n}+2$

Answer 1

1)
[tex]a_1=1\\ a_{n+1}=a_n-1\\\\ a_2=a_1-1=0\\ a_3=a_2-1=-1\\ a_4=a_3-1=-2\\ a_5=a_4-1=-3\\ a_6=a_5-1=-4[/tex]

b)
[tex]a_1=1\\ a_{n+1}=a_n+2\\\\ a_2=a_1+2=3\\ a_3=a_2+2=5\\ a_4=a_3+2=7\\ a_5=a_4+2=9\\ a_6=a_5+2=11[/tex]