Answer:
a1= 3/2
a2=9/5
a3=27/10
a4=81/17
a5=243/26
Step-by-step explanation:
Fisrt: an = a1
Formula = (3^n)/(n^2+1)
Replace n by 1 and then continue for a2, a3, a4, a5
Therefore:
a1=(3^1)/(1^2+1) = 3/(1*1+1) = 3/(1+1) = 3/2
a2=(3^2)/(2^2+1) = 9/(4+1) = 9/5
a3 = (3^3)/(3^2+1) = 27/(9+1) = 27/10
a4 = (3^4)/(4^2+1) = 81/(16+1) = 81/17
a5 = (3^5)/(5^2+1) = 243/(25+1) = 243/26
