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A sequence defined by a rule gives first five terms 1, 3, 5, 7, 9. Its series is written as:
A1 + 3 + 5 + 7 + 9
B1, 3, 5, 7, 9
C1 x 3 x 5 x 7 x 9
D9, 7, 5, 3, 1
Answer & Solution
Correct answer: A. 1 + 3 + 5 + 7 + 9
1. A series joins the terms with plus signs.
2. The terms are 1, 3, 5, 7 and 9.
3. So the series is 1 plus 3 plus 5 plus 7 plus 9.
_Source: NCERT Class 11 Mathematics, Chapter 8, Sequences and Series._
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