Question

........is an A.P.

(a) 2, 4, 8, 16, ... (b) 3, 0, 3, 0, .... (c) 2, 5, 8, 11, .... (d) 0, 4, -4,8, ....​

Answer 1

Answer

c

Explanation

a2-a1=5-2=3

a3-a2=8-5=3

a4-a3=11-8=3

common difference is 3.

Answer 2

Answer:

c 2,5,8,11

Step-by-step explanation:

2,5,8,11

we know

common difference=a2-a

here a2=5 a=2

therefore d=5-2=3

similarly a3-a2

here a3= 8

so d=8-5=3

and hence a4-a3

a3=11

so a4-a3

11-8=3

Hence in this case we can say that as the common difference of the terms are equal then this is called as AP or Arithmetic Progression