Home
Class 12
MATHS
If aN = {ax : x in N} " and " bN cap cN ...

If `aN = {ax : x in N} " and " bN cap cN = dN " where " b,c in N ` are relatively prime then

A

`d = bc`

B

`c = bd`

C

`b = cd`

D

none

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SEQUENCES AND SERIES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE|156 Videos
  • STRAIGHT LINES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) (SET-4)|12 Videos

Similar Questions

Explore conceptually related problems

If aN = {ax : x in N} " then " 3N cap 7N =

Let N be the of natural number and for a in N , aN denotes the set {ax:x in N} . If bN nn cN=dN , where b, c, d are natural numbers greater than 1 and the greatest common divisor of b and c is 1 then d equals

A = {x : x in N, and x is a factor of 30}, B = {x : x in N and x is a prime factor of 30}. Draw Venn diagram for AuuB .

N cap W= ……………..

A={x:x in N, and x is a multiple of 4}, B={x:x in N , and x is a multiple of 6}, C={x:x in N, and x is a multiple of L.C.M of 4 and 6}: Find A cap B . How can you relate the sets A cap B and C?

If n(A) = 20, n (B) = 44, n (A cap B) = 13" then " n (A cup B) =

If A = {x : x is a prime less than 20} and B = {x : x is a whole number less than 10}, then verify n(A uu B) = n(A) + n(B) - n(AnnB) .

If x and y are any two relative prime numbers, then their H.C.f is

If n(A) = 37, n(B) = x, n(A cup B) = 52, n(A cap B) = 8 , then x =

If n(A) = 25, n(B) = 15, n (A cup B) = 30," then " n (A cap B ) =

DIPTI PUBLICATION ( AP EAMET)-SETS ( APPENDIX - 1)-EXERCISE
  1. If X = {4^(n) - 3n - 1: n in N} " and " Y = {9(n-1): n in N}, where N ...

    Text Solution

    |

  2. A = {(x,y) : y = 1//x,0 ne x in R} , B = {(x, y) : y = - x, x in R} th...

    Text Solution

    |

  3. A = {x : cos x gt - 1//2, 0 le x le pi}, B = {x : sin x gt 1//2,pi//3 ...

    Text Solution

    |

  4. If aN = {ax : x in N} " then " 3N cap 7N =

    Text Solution

    |

  5. If aN = {ax : x in N} " and " bN cap cN = dN " where " b,c in N are ...

    Text Solution

    |

  6. Which of the following is an empty set

    Text Solution

    |

  7. The smallest A such that A cup {1,2} = {1,2,3,5,9} is

    Text Solution

    |

  8. In a college of 300 students, every student reads 5 newspapers and eve...

    Text Solution

    |

  9. Consider the set A of all determinants of order 3 with entries 0 or 1 ...

    Text Solution

    |

  10. Suppose A(1),A(2),…,A(30) are 30 sets each with 5 elements and B(1),B(...

    Text Solution

    |

  11. If A = { Ø, {Ø}} then the power set of A is

    Text Solution

    |

  12. Two finite sets have m and n elements. The total number of subsets of ...

    Text Solution

    |

  13. If A and B have 3 and 6 elements then the minimum number of elements i...

    Text Solution

    |

  14. In a class of 55 students, the number of students studying different s...

    Text Solution

    |

  15. In a class of 100 students, 55 students have passed in Mathematics and...

    Text Solution

    |

  16. Out of 800 boys in a school , 224 played cricket, 240 played hookey a...

    Text Solution

    |

  17. The set of intelligent students in a class is

    Text Solution

    |

  18. In a certain town 25% families own a phone and 15% own a car, 65% fami...

    Text Solution

    |

  19. In a city 20 percent of the population travels by car, 50 percent trav...

    Text Solution

    |

  20. In a battle 70% of the combatants lost one eye, 80% an ear, 75% an ar...

    Text Solution

    |