Project ID:
7100000002
Accepted:
Typ:
Layout:
Question:
Priraďte ku danej postupnosti príslušný hľadaný člen.
Question 1:
$$(a_n)_{n=1}^{\infty}:a_n=5-3n;\ a_5=?$$
Answer 1:
$-10$
Question 2:
$$(a_n)_{n=1}^{\infty}:a_n=\frac{3n-2}{2n+1};\ a_3=?$$
Answer 2:
$1$
Question 3:
$$(a_n)_{n=1}^{\infty}:a_n=\frac{2^n}{n};\ a_4=?$$
Answer 3:
$4$
Question 4:
$$(a_n)_{n=1}^{\infty}:a_n=1^n+(-1)^n;\ a_{123}=?$$
Answer 4:
$0$
Question 5:
$$(a_n)_{n=1}^{\infty}:a_n=\cos(n\cdot\frac{\pi}{2});\ a_6=?$$
Answer 5:
$-1$
Question 6:
$$(a_n)_{n=1}^{\infty}:a_1=-1;\ a_{n+1}=a_n+2;\ a_3=?$$
Answer 6:
$3$
Question 7:
$$(a_n)_{n=1}^{\infty}:a_1=-16;\ a_{n+1}=\frac{a_n}{2};\ a_3=?$$
Answer 7:
$-4$
Question 8:
$$(a_n)_{n=1}^{\infty}:a_1=9;\ a_{n+1}=\frac{2a_n}{n+1};\ a_3=?$$
Answer 8:
$6$
Question 9:
$$(a_n)_{n=1}^{\infty}:a_n=\frac{n^3}{81};\ a_9=?$$
Answer 9:
$9$