Question

The nth term of an ap is given by an=3n-2 then the 12th term is

Answer 1

Explanation:

$\textsf{It is given that the}}\: \boldsf{\mathsf{n^{th}}} \: {\textsf{term of an A.P. is given by}$

$\mathsf{a_n=3n-2}$

$\textbf{\textsf{To find the twelfth term of this A.P.,}}$

We simply replace n in the given equation by 12, meaning that

$\mathsf{a_{12}=3\times12-2}$

==> $\mathsf{a_{12}=36-2}$

∴$a_{12}=34$

Answer: 34