Q : 2 Write first four terms of the AP, when the first term a and the common difference d are given as follows:
(i)
It is given that
Now,
Therefore, the first four terms of the given series are 10,20,30,40
a2= a+d+10=20
a3=a+2d=10+2(10)=10+20=30
A4=a+3d=10+3(10)=10+30=40
A5=a+4d=10+4(10)=10+40=50
10,20,30,40,50