Question

Write first four terms of the $AP$, when the first term a and the common difference d are given as follows:
(i)$a=10$ $d=10$
(ii) $a=-2$, $d=0-3$
(iii) $a=4$, $d=-3$
(iv) $a=-1$, $d=\frac{1}{2}$
(v) $a=-1$, $d=\frac{1}{2}$

Answer 1

$\begin{array}{c}\left(i\right)ifa=10,d=10\\ 10,20,30,40areinA.P\\ \left(ii\right)a=-2,d=-3\\ -2,-5,-8,-11areinA.P\\ \left(iii\right)a=4,d=-3\\ 4,-2,-5,-8areinA.P\\ \left(iv\right)a=-1,d=\frac{1}{2}\\ -1,\frac{-1}{2},0,\frac{1}{2}areinA.P.Ans.\end{array}$