Question

Arithmetic progression practices set 3.1 Q. 1 which of the following sequences are A.P .? if they are A.P find the common differences (1) 2,4,6,,8,...​

Answer 1

the given sequence is an arithmetic progression

common difference=

a2-a1= a3-a1

4-2 = 6-4

2 is the common difference

Answer 2

(1) 2,4,6,8

ans. t= 2, t= 4 ,t= 6, t=8

1) 4 -2

=2

2) 6 -4

=2

3)8 -6

= 2

the given sequence is an A. P.

common difference is d=2