Question

Is a,2a,3a,4a________A.P? If yes then find the common difference​

Answer 1

Answer:

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Step-by-step explanation:

YES, it is in AP

Common difference

$2a - a = a \\ 3a - 2a = a \\ 4a - 3a = a$

from this we can conclude that common difference is a

Answer 2

$\huge\bf\underline\red{Explanation}$

If a series is in AP their common Difference should be Same .

Given series a, 2a , 3a , 4a ...

Difference (d)

2a - a = a

3a - 2a = a

4a - 3a = a etc...

Hence common difference is a Same

So, We can say that Given series is in AP