Question

Given that an =( n²‐1/ n+3; n is even,nEN n²/2 n+1;n is odd ,nEN) then find a⁸ and a¹⁵​

Answer 1

Given that an =( n²‐1/ n+3; n is even,nEN n²/2

Correct option is

C

12

Given that:

Tn=n2+3

To find:

T3=?

Solution:

Tn=n2+3

T3=32+3

T3=9+3

T3=12