Write the first five terms of each of the sequences in Exercises 1 to 6 whose nth terms are: a_n = n (n + 2)

Solution:

a_n = n (n + 2)

Substituting n = 1, 2, 3, 4, 5

a₁ = 1(1 + 2) = 3

a₂ = 2(2 + 2) = 8

a₃ = 3(3 + 2) = 15

a₄ = 4(4 + 2) = 24

a₅ = 5(5 + 2) = 35

Therefore, the required terms are 3, 8, 15, 24 and 35

NCERT Solutions Class 11 Maths Chapter 9 Exercise 9.1 Question 1

Write the first five terms of each of the sequences in Exercises 1 to 6 whose nth terms are: a_n = n (n + 2)

Summary:

We are given that the nth term of the sequence is a_n = n(n+2), therefore using the formula the answers are 3, 8, 15, 24 and 35