Question

The nth term of sequence is given by 5n2-2.find the 3 term of this sequence​

Answer 1

Answer:

68

Step-by-step explanation:

Given, Tn=5n2−2

So, T1=5−2=3

T2=5(22)−2=18

T3=5(32)−2=47

So, Sum of first three terms =3+18+47=68