Question

Prove that a-b,a,a+b are three consecutive terms of an ap

Answer 1

Answer:

in ap common difference is same

a-(a-b) =b

(a+b) -a=b

common difference same, so it's ap

Answer 2

Step-by-step explanation:

1. we know that, a2-a1=a3-a2
2. therefore, a-(a-b)=a+b-a
3. a-a+b=a+b-a
4. B=b
5. hence a-b,a&a+b are the three consecutive terms of an A.P