Question

Write first four terms of the A.P. when the first term $a$ and the common difference $d$ are given as follows:$\left(ii\right)a=-2,d=0$

Answer 1

Solution.

The $nth$term of an A.P. is given by the expression,

$a_n=a+(n-1)d$

Where $a$ is the first term and $d$ is the common difference.

We have to find the first four terms of the A.P. which has $a=-2,d=0$.

$$\begin{gathered} a_1=a=-2 \\ {a}_2=a+d=-2+0=-2 \\ {a}_3=a+2d=-2+2\left(0\right)=-2 \\ {a}_4=a+3d=-2+3\left(0\right)=-2 \end{gathered}$$

Hence, the first four terms of the given A.P. are $-2,-2,-2,-2$.