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Write the first five terms of the sequences whose nth term is: an = 2n - Mathematics

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Question

Write the first five terms of the sequences whose nth term is:

an = 2n

Sum
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Solution

an = 2n

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

a1 = 21 = 2,

a2 = 22 = 4,

a3 = 23 = 8,

a4 = 24 = 16,

a5 = 25 = 32

Hence, the five terms of the sequence are 2, 4, 8, 16, 32.

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Chapter 9: Sequences and Series - Exercise 9.1 [Page 180]

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NCERT Mathematics [English] Class 11
Chapter 9 Sequences and Series
Exercise 9.1 | Q 3 | Page 180
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