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Examples
Example 1 Important You are here
Example 2
Example 3
Example 4 Important
Example 5 Important
Example 6 Important
Example 7
Prove that root 2 is Irrational
Question 1 Important Deleted for CBSE Board 2025 Exams
Question 2 Deleted for CBSE Board 2025 Exams
Question 3 Deleted for CBSE Board 2025 Exams
Question 4 Important Deleted for CBSE Board 2025 Exams
Case Based Questions (MCQ)→
Chapter 1 Class 10 Real Numbers
Serial order wise
- Ex 1.1
- Ex 1.2
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Examples
- Case Based Questions (MCQ)
- MCQs from NCERT Exemplar
- Past Year MCQ (Maths Standard)
- Euclid's Division Algorithm
- Decimal Expansion
Last updated at April 16, 2024 by Teachoo
Transcript
Example 1Consider the numbers 4n , where n is a natural number. Check whether there is any value of n for which 4n ends with the digit zero.Let us take the example of a number which ends with the digit 0So, 10 = 2 × 5 100 = 2 × 2 × 5 × 5 Here we note that numbers ending with 0 has both 2 and 5 as their prime factorsWhereas 4n = (2 × 2) nDoes not have 5 as a prime factor. So, it does not end with zero. ∴ 4n cannot end with zero for any natural number n
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Made by
Davneet Singh
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.
