Home
Class 10
MATHS
If A = {x//x is a prime number and x<20 ...

If A = {`x//x` is a prime number and x<20 } then
B = {`x//2x+1, x in w` and x<9} then Find
B-A. What do you observe?

Promotional Banner

Topper's Solved these Questions

  • Miscellaneous Problems

    BEYOND PUBLICATION|Exercise EXAMPLE|25 Videos

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    BEYOND PUBLICATION|Exercise EXERCISE|174 Videos

Similar Questions

Explore conceptually related problems

If A = { x//x is a prime number and x B = { x//2x+1, x in w and x A-B

If A = { x//x is a prime number and x B = { x//2x+1, x in w and x AnnB

If A = { x//x is a prime number and x B = { x//2x+1, x in w and x BnnA

If A - {x|x is a prime number and x B = {x|2x + 1, x in w and x Find BnnA ?

IF A={x:x in N, x lt 10 }, B={x:x is a prime number and x lt 10 }, then show that A-B ne B-A with the help of Venn-diagram.

If A = {x : x is a prime and x lt 10 }, B = {x : x is a factor of 6}, then find AnnB , AuuB and A - 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 A = { x : x is a natural number }, B = { x : x is an even natural number} C = { x : x is an odd natural number} and D = { x : x is a prime number }, find B ∩ C

If A = { x : x is a natural number }, B = { x : x is an even natural number} C = { x : x is an odd natural number} and D = { x : x is a prime number }, find B ∩ D

BEYOND PUBLICATION-MODEL PAPER-EXERCISE
  1. If A - {x|x is a prime number and x < 20} B = {x|2x + 1, x in w and x<...

    Text Solution

    |

  2. If A = {x//x is a prime number and x<20 } then B = {x//2x+1, x in w ...

    Text Solution

    |

  3. If A = {x//x is a prime number and x<20 } then B = {x//2x+1, x in w ...

    Text Solution

    |

  4. The coach of a cricket team of M.K.Nagar High School buys 3 bats and 6...

    Text Solution

    |

  5. Solve the qudratic polynomial x^(2) - 3x-4 by graphical method.

    Text Solution

    |

  6. The H.C.F of 31, 43 and 47 is…………

    Text Solution

    |

  7. If x+y+z =xyz, then sum(2x)/(1-x^(2))=

    Text Solution

    |

  8. n(A) = 14, n(B)= 11, n(AnnB)=19 then n(AuuB)=…..

    Text Solution

    |

  9. If a fraction becomes 2 when 9 is added to its numerator and 1 when 2 ...

    Text Solution

    |

  10. The sum of squares of two consecutive positive even numbers is 340, th...

    Text Solution

    |

  11. Which term of G.P. 3, 3sqrt(3), 9, ……. equals to 243?

    Text Solution

    |

  12. If sqrt a + sqrt b is an irrational number, then which of the followin...

    Text Solution

    |

  13. The graph y=ax+b is a straight line which intersects X-axis at

    Text Solution

    |

  14. If x^2+ax+b=0,x^2+bx+a=0 have a common roots then

    Text Solution

    |

  15. Coefficient of x in a polynomial ax^2 + bx + c is '0'. Then its zeroes...

    Text Solution

    |

  16. The series (n-1),(n-2),(n-3),…. Is a type of

    Text Solution

    |

  17. A metal cuboid of dimension 22 cm xx 15 cm xx 7.5 cm , was melted and ...

    Text Solution

    |

  18. If log a, log b, log c are in A.P. then a,b,c are

    Text Solution

    |

  19. To calculate the quantity of milk inside a bottle, we need to find out...

    Text Solution

    |

  20. The altitude of a right triangle is 7 cm less than its base. If the hy...

    Text Solution

    |