Question

write the first three terms in each of the sequence Defined by the following an=n2+1

Answer 1

put n = 1 we get:

a1 = 2 X 1 + 1 = 2 + 1 = 3 (First term)

a2 = 2 X 2 + 1 = 4 + 1 = 5 (Second term)

a3 = 2 X 3 + 1 = 6 + 1 = 7 (Third term)

Hence the terms are 3, 5 , 7

Answer 2

Answer:

Put n=1 we get:

a1 = 2×2+1=2+1=3 (First term)

a2 = 2×2+1=4+1=5 (Second term)

a3=2×3+1=6+1=7 (Third term)

Hence the terms are 3, 5, 7.