Question

write first four terms of AP when the first term a and the common difference d ?
A). a= 20, b=20
​

Answer 1

Answer:

Explain the question properly mate...

There is no clarity in question...

Answer 2

Answer:

a=20,b=20

a1=a

a1=20

a2=a+d

a2=20+20=40

a3=a+2d

a3=20+40=60

a4=a+3d

a4=20+60=80

4 terms are 20,40,60,80