Home
Class 12
MATHS
Let * be the binary operation on N given...

Let * be the binary operation on N given by a*b = l.c.m. of a and b. Find 5 * 7, 20 * 16

Promotional Banner

Topper's Solved these Questions

  • RELATIONS AND FUNCTIONS

    PRADEEP PUBLICATION|Exercise EXERCISE|401 Videos

  • PROBABILITY

    PRADEEP PUBLICATION|Exercise EXERCISE|467 Videos

  • THREE DIMENSIONAL GEOMETRY

    PRADEEP PUBLICATION|Exercise EXERCISE|373 Videos

Similar Questions

Explore conceptually related problems

Let * be the binary operation on N given by a * b = L.C.M. of a and b. Find. Is * commutative?

Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and b . Find : Is ∗ commutative?

Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and b . Find : Is ∗ associative?

Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and b . Find : Which elements of N are invertible for the operation ∗ ?

Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and b . Find : Find the identity of ∗ in N

Let ** be binary operation on N given by a ** b = LCM of a and b. Find Is ** commutative

Let ** be binary operation on N given by a ** b = LCM of a and b. Find Find the identity of ** in N.

PRADEEP PUBLICATION-RELATIONS AND FUNCTIONS-EXERCISE
  1. Consider a binary operation * on the set (1,2,3,4,5) given by the adjo...

    Text Solution

    |

  2. Let * be the binary operation on the set {1,2,3,4,5}, defined by a *' ...

    Text Solution

    |

  3. Let * be the binary operation on N given by a*b = l.c.m. of a and b. F...

    Text Solution

    |

  4. Let * be the binary operation on N given by a * b = L.C.M. of a and b....

    Text Solution

    |

  5. Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and ...

    Text Solution

    |

  6. Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and ...

    Text Solution

    |

  7. Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and ...

    Text Solution

    |

  8. Is '*' defined on the set {1,2,3,4,5} by a*b = L.C.M. of a and b a bin...

    Text Solution

    |

  9. Let be the binary operation on N defined by a*b = H.C.F. of a and b: I...

    Text Solution

    |

  10. Let ∗ be a binary operation on the set Q of rational numbers as follow...

    Text Solution

    |

  11. Let ∗ be a binary operation on the set Q of rational numbers as follow...

    Text Solution

    |

  12. Let * be a binary operation on the set Q of rational numbers as follow...

    Text Solution

    |

  13. Let ∗ be a binary operation on the set Q of rational numbers as follow...

    Text Solution

    |

  14. Let * be a binary operation on the set Q of rational numbers as follow...

    Text Solution

    |

  15. Let ∗ be a binary operation on the set Q of rational numbers as follow...

    Text Solution

    |

  16. Show that the number of binary operations on {1, 2} having 1 as identi...

    Text Solution

    |

  17. let A = N xxN and * be the binary operation on A defined by : (a,b) * ...

    Text Solution

    |

  18. State whether the following statement is true or false. Justify:For an...

    Text Solution

    |

  19. State whether the following statements are true or false. Justify. If ...

    Text Solution

    |

  20. State whether the following statements are true or false. Justify . Fo...

    Text Solution

    |