Question

If nth term of an ap is sn is equal to the 5nsqare + 5n find common difference

Answer 1

Answer:

Hey mate ✌✌✌

Here is your answer.

Here sn=n=5n^2+5n

so, by putting n as 1, and 2.

By putting the value if n as 1 and 2 .

We can find first ( a1 )and second term( a2 )

By using first and second term we can easily find common difference ( d ) .

d = a2 -a1

To find d we have to find a1 and a2 .

To understand it betterly see the attachment .

Hope it will help you. :--)