Question

Write the first five terms of the sequence, whose $n^{th}$ terms is $a_n=2^n$.

Answer 1

Finding sequence.
Given, $a_n=2^n,n\in N$
Substituting $n=1,2,3,4$ and $5$ in $a_n$, we get
$a_1=2^1\Rightarrow a_1=2$
$a_2=2^2\Rightarrow a_2=4$
$a_3=2^3\Rightarrow a_3=8$
$a_4=2^4\Rightarrow a_4=16$
$a_5=2^5\Rightarrow a_5=32$

Hence, the first five terms of sequence are $2,4,8,16$ and $32$.