Home
Class 11
MATHS
Consider the equation 1+6+11 + 16 + ... ...

Consider the equation 1+6+11 + 16 + ... +x= 148 If n is the number of terms in the sum, prove that `n=(x+4)/5`-

Promotional Banner

Topper's Solved these Questions

  • RELATIONS AND FUNCTIONS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|83 Videos

  • SETS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|268 Videos

Similar Questions

Explore conceptually related problems

Consider the equation 1+6+11 + 16 + ... +x= 148 Solve the given equation

Consider the equation 1+6+11 + 16 + ... +x= 148 Prove that x^2+5x-1476=0

Consider the expansion of ((4x)/5-5/(4x))^8 Find the number of terms in the expansion

The number of term in the expansion of (x-1/x)^2n is…….

Consider the expansion of (x+1/x)^10 The number of terms in the expansion is……

Consider the expansion of (x/9+9y)^2n The number of terms in the expansion is….

Consider the expansion of (x+a)^n Find the 6th ,7th and 8th terms in the expansion

Consider the set {x : x= 2^n ,n is a natural number, n le5 } Write this set in roster form.

Consider the expansion of ((4x)/5-5/(4x))^8 Find the (r+1)^(th) term in the expansion

A N EXCEL PUBLICATION-SEQUENCES AND SERIES-QUESTION BANK
  1. Consider the A.P. 18,15,12.... Find the sum to n terms of the A.P.

    Text Solution

    |

  2. Consider the A.P. 18,15,12.... How many terms are needed to give the s...

    Text Solution

    |

  3. Consider the equation 1+6+11 + 16 + ... +x= 148 If n is the number of ...

    Text Solution

    |

  4. Consider the equation 1+6+11 + 16 + ... +x= 148 Prove that x^2+5x-1476...

    Text Solution

    |

  5. Consider the equation 1+6+11 + 16 + ... +x= 148 Solve the given equati...

    Text Solution

    |

  6. If S1,S2 and S3 are respectively the sums of n, 2n and 3n terms of an ...

    Text Solution

    |

  7. If S1,S2 and S3 are respectively the sums of n, 2n and 3n terms of an ...

    Text Solution

    |

  8. Find the number of integers between 100 and 800 each of which on divis...

    Text Solution

    |

  9. Find the number of integers between 100 and 800 each of which on divis...

    Text Solution

    |

  10. If x1,x2,x3,x4,x5 and x6 are the 6 terms between 3 and 24, find the co...

    Text Solution

    |

  11. Insert 6 arithmetic means between 3 and 24.

    Text Solution

    |

  12. Suppose that a, b, c are in A.P. Prove that 2b = a + c

    Text Solution

    |

  13. Suppose that a, b, c are in A.P. Prove that a^2(b+c),b^2(c+a),c^2(a+b)...

    Text Solution

    |

  14. If a, b, c are in A.P, prove that 1/(bc),1/(ca),1/(ab) are also in A.P...

    Text Solution

    |

  15. Suppose a, b, c are in A.P. Prove that (ab+bc+ca)/(bc),(ab+bc+ca)/(ca)...

    Text Solution

    |

  16. Suppose a, b, c are in A.P.Prove that a(1/b+1/c),b(1/c+1/a),c(1/a+1/b)...

    Text Solution

    |

  17. Suppose a^2,b^2,c^2 are in A.P. Prove that 2b^2=a^2+c^2

    Text Solution

    |

  18. Suppose a^2,b^2,c^2 are in A.P. Prove that a/(b+c),b/(c+a),c/(a+b)are ...

    Text Solution

    |

  19. Suppose (b+c)/a,(c+a)/b,(a+b)/c are in A.P.Prove 1/a,1/b,1/c are also ...

    Text Solution

    |

  20. Suppose (b+c)/a,(c+a)/b,(a+b)/c are in A.P.Prove 1/a,1/b,1/c are also ...

    Text Solution

    |