Question

*plz* Ans my question........... ​

Answer 1

Answer:

given sm = 4n^2-n

so

s1=4(1)^2-1

s1=3

s2=4x2^2-2

s2=16-2=14

now

a2=s2-s1=14-3=11

so d=11

now a25=3+24x11=3+264=267