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
(iii) a=4,d=−3
(iv) a=−1,d= 12
(v) a=−1.25,d=−0.25
An arithmetic progression is given by a,(a+d),(a+2d),(a+3d), .
where a= the first term, d= the common difference
(i) 10,10+10,10+2(10) and 10+3(10)=10,20,30 and 40
(ii) −2,−2+(0),−2+2(0) and −2+3(0)=−2,−2,−2 and −2 (this is not an A.P)
(iii) 4,4+(−3),4+2(−3) and 4+3(−3)=4,4−3,4−6 and 4−9=4,1,−2 and −5
(iv)−1,−1+(12),−1+2(12) and −1+3(12)=−1,−12,0 and 12
(v)−1.25,−1.25+(−0.25),−1.25+2(−0.25) and −1.25+3(−0.25)=−1.25,−1.50,−1.75 and −2.0