Question

write the first four terms of an AP when:-
d=10​

Answer 1

Answer:

First four terms of this A.P. will be 10, 20, 30, and 40.

Step-by-step explanation:

(i) Given:d = 10

let a=10

Let the series be a1, a2, a3, a4, a5 …

a1 = a = 10

a2 = a1 + d = 10 + 10 = 20

a3 = a2 + d = 20 + 10 = 30

a4 = a3 + d = 30 + 10 = 40

a5 = a4 + d = 40 + 10 = 50

the series will be 10, 20, 30, 40, 50 …

Answer 2

Step-by-step explanation:

a=10

d=10

so the next four terms will be a+d;a+2d;a+3d;a+4d

so 2nd term=a+2d ;a+3d; a+4d

so2nd term=a+2d=10+2×10=30

similarly find the 3rd;4th term by substituting the value of a and d in a+3d;a+4d

same step for the fowing

hope u understand