Home
Class 11
MATHS
If a∈N and aN={ax:x∈N}then the value of ...

If `a∈N and aN={ax:x∈N}`then the value of `3Ncap5N`is

A

a)2N

B

b)8N

C

c)15N

D

d)30N

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TECHNO INDIA GROUP ACADEMIA,SOUTH KOLKATA.

    UNITED BOOK HOUSE|Exercise EXERCISE|50 Videos

  • TIRTHAPATI INSTITUTION

    UNITED BOOK HOUSE|Exercise EXERCISE|32 Videos

Similar Questions

Explore conceptually related problems

If a N = { ax : x in N} then the set 4N cap 6N is

If aN={ax:x in N(natural number)} then 3N cap 7N is equal to

If n (x) = 12, n (Y) = 10 and n (Xcap Y) = 8 , then the value of of n(XcupY) is

If n(A) =4, n(B)=3 and n(Axx B xxC)=24, then the value of n(C ) is-

In the binomial expansion (1+ax)^(n) , the first three terms are 1 , 12x and 64 x^(2) ,then the value of n will be -

The first three terms in the expansion of (1+ ax) ^(n) are 1, 6x and 16x^(2), then the values of a and n are -

If n(x) = 4, n (Y) = 3 and n(X xx Y xx Z) = 24 , then the value of n(Z) is

If n be a positive integer and P(n):4^(5n)-5^(4n) If P(n) be negative value, then the value of n is -

If ^ n P_5 = 20 ^nP_3 find the value of n

Let f(x)=(x-1)(x-2)(x-3)...(x-n),n in N ,a n d f'(n)=5040. Then the value of n is________

UNITED BOOK HOUSE-THE SCOTTISH CHURCH COLLEGIATE SCHOOL-EXERCISE
  1. If a∈N and aN={ax:x∈N}then the value of 3Ncap5Nis

    Text Solution

    |

  2. If f(x+1)=3x-9,then value of f(x^2-1)is

    Text Solution

    |

  3. In a GP the sum of first 6 terms is 9 times the sum of first 3 terms.T...

    Text Solution

    |

  4. If x=sin^2alpha+cosec^2alpha,then the value of x is

    Text Solution

    |

  5. The centre of the circle lambdax^2+(2lambda-3)y^2-4x+6y-1=0is

    Text Solution

    |

  6. The condition that the points (a,0),(0,b)and (2,2) are collinear is

    Text Solution

    |

  7. Which one is the equation of the directrix of the parabola 3y^2=-4x

    Text Solution

    |

  8. The value of lim(xrarr0)(1-cos4x)/x^2is

    Text Solution

    |

  9. If y=cos^2(x/2)then dy/dx is

    Text Solution

    |

  10. In the expansion of (1+x)^(m+n)the co-efficient of x^mis

    Text Solution

    |

  11. if g(x)=(x-a)/x+x/(x-b)then show that g((a+b)/2)=(4ab)/(a^2-b^2)

    Text Solution

    |

  12. Find the domain of definition of the function f(x)=1/(sqrt(5x-x^2-6))

    Text Solution

    |

  13. If tan(pi/4-theta)=1/2then find sin2theta

    Text Solution

    |

  14. Prove that 2sin(pi/8)=sqrt(2-sqrt2)

    Text Solution

    |

  15. If Z is a complex number |Z+3|le5.then find the greatest and smallest ...

    Text Solution

    |

  16. Find the value of n so that (a^(n+1)+b^(n+1))/(a^(n)+b^n) may be the ...

    Text Solution

    |

  17. In the expansion of (x^2+K/x)^6the co-efficient of x^3is 160.what is t...

    Text Solution

    |

  18. If (2^(2n)-1)is division by 3,then show that [2^(2(n+1))-1]is also div...

    Text Solution

    |

  19. Find the equation of the st.line which pass through the pt(3,1) and pe...

    Text Solution

    |

  20. Show that the locus of the pt of intersection of the st.lines xcosthe...

    Text Solution

    |