a_1=a_2=2, a_n=a_n-1-1, n>2 . Find a_5 - Vidyadip

MCQ

$a_1=a_2=2, a_n=a_n-1-1, n>2 \text {. Find } a_5$

A
2
✓
-1
C
1
D
0

✓

Answer

Correct option: B.

-1

-1

Solution:
$\Rightarrow a_n=a_n-1-1, n>2$
$\Rightarrow a_3=a_2-1=2-1=1$
$\Rightarrow a_4=a_3 1=11=0$
$\Rightarrow a_5=a_4-1=0-1=-1$.

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