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1. Prove that is an irrational number. 2. State fundamental theorem of Arithmetic and hence find the unique factorization of 120 . 3. Prove that is irrational 4. Prove that is an irrational number. 5. Find HCF and LCM of 56 and 112 by prime factorization method. 6. Explain why: (i) is a composite number (ii) is a composite number. (iii) is a composite number. 7. Find the largest number that divides 31 and 99 leaving remainder 5 and 8 respectively. 8. The HCF of 65 and 117 is expressible in the form . Find the value of . Also find the LCM of 65 and 117 using prime factorisation method. 9. Find the largest number that divides 1251, 9377 and 15628 leaving remainder 1,2 and 3 respectively. 10. Show that can never ends with unit digit zero. 11. HCF of and . 12. Find LCM\& HCF of 14 and 122 and verify the relation between them.

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Question Text |
1. Prove that is an irrational number. 2. State fundamental theorem of Arithmetic and hence find the unique factorization of 120 . 3. Prove that is irrational 4. Prove that is an irrational number. 5. Find HCF and LCM of 56 and 112 by prime factorization method. 6. Explain why: (i) is a composite number (ii) is a composite number. (iii) is a composite number. 7. Find the largest number that divides 31 and 99 leaving remainder 5 and 8 respectively. 8. The HCF of 65 and 117 is expressible in the form . Find the value of . Also find the LCM of 65 and 117 using prime factorisation method. 9. Find the largest number that divides 1251, 9377 and 15628 leaving remainder 1,2 and 3 respectively. 10. Show that can never ends with unit digit zero. 11. HCF of and . 12. Find LCM\& HCF of 14 and 122 and verify the relation between them. |

Updated On | Feb 14, 2023 |

Topic | All topics |

Subject | Mathematics |

Class | Class 9 |

Answer Type | Video solution: 1 |

Upvotes | 61 |

Avg. Video Duration | 3 min |