Question

Question #3e258

Answer 1

`a_n = a + (n-1)d`

Explanation:

Here

`a_3=10`

`a_5=26`

On solving, we get

`a+4d=26`

`a+3d=10`

On substituting `a=1`, we get

`d=3`

Therefore,

`a_n = 1 + 3(n-1)`