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MCQ
Choose the correct alternative answer for the question given below.
Which of the following is an irrational number?
Options
0.17
1.513
0.2746
0.101001000.....
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Solution
Since ,
0.17 has a terminating decimal expansion , so , it is rational number;
1.513 has non-terminating recurring decimal expansion, so, it is rational number;
0.2746 has non-terminating recurring decimal expansion, so, it is rational number;
0.101001000..... has non-terminating non-recurring decimal expansion, so, it is irrational number;
Concept: Concept of Rational Numbers
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