Home
Class 10
MATHS
Write the expression an-ak for the ...

Write the expression `a_n-a_k` for the A.P. `a ,\ a+d ,\ a+2d ,\ ddot` Hence, find the common difference of the A.P. for which `11 t h` term is 5 and `13 t h` term is 79

Promotional Banner

Topper's Solved these Questions

  • AREAS RELATED TO CIRCLES

    RD SHARMA|Exercise All Questions|251 Videos

  • CIRCLES

    RD SHARMA|Exercise All Questions|131 Videos

Similar Questions

Explore conceptually related problems

Write the expression a_n-a_k for the A.P. a, a+ d, a + 2d.........., Hence, find the common difference of the A.P. for which (i) 11th term is 5 and 13th term is 79 (ii) a_10- a_5 =200 (ii) 20th term is 10 more than the 18th term.

Write the expression a_(n)-a_(k) for the A.P.a,a+d,a+2d,.. Hence,find the common difference of the A.P.for which 20th term is 10 more than the 18th term.

The common difference d of the A.P. in which T_(7) = 9 and T_(1)T_(2)T_(7) is least is

For an A.P. a=25 and t_(20)=500. Find the common difference d.

For an A.P. , t_(3)=7 and t_(4)=3, Find the common difference and the first term.

If the n^(th) term of A.P. is (3+n)/(4) , then find the common different of A.P.

If the first term of an A.P. is a and n t h term is b , then its common difference is

If 3rd term of an A.P. is 5 and 7th term is 13, then its common difference is :

If n^(th) term of A.P is 2n+3, then common difference is

Find the common difference ( d) for an A.P., if t_(3) = 8 and t_(4) = 12 .

RD SHARMA-ARITHMETIC PROGRESSIONS-All Questions
  1. The first term of an A.P. is 5 and its 100 t h term is -292 . Find ...

    Text Solution

    |

  2. Find a(30)-a(20) for the A.P. -9,\ -14 ,\ -19 ,\ -24 ,\ dot (ii) a ...

    Text Solution

    |

  3. Write the expression an-ak for the A.P. a ,\ a+d ,\ a+2d ,\ ddot...

    Text Solution

    |

  4. Write the expression an-ak for the A.P. a ,\ a+d ,\ a+2d ,\ ddot...

    Text Solution

    |

  5. Write the expression an-ak for the A.P. a ,\ a+d ,\ a+2d ,\ ddot...

    Text Solution

    |

  6. Find n if the given value of x is the n t h term of the given A....

    Text Solution

    |

  7. Find n if the given value of x is the n t h term of the given A....

    Text Solution

    |

  8. If an A.P. consists of n terms with first term a and n^(th) term l the...

    Text Solution

    |

  9. Determine the AP whose third term is 16 and the 7th term exceeds the 5...

    Text Solution

    |

  10. The 7t h term of an A.P. is 32 and its 13 t h term is 62. Find t...

    Text Solution

    |

  11. Two APs have the same common difference. The difference between the...

    Text Solution

    |

  12. For what value of n, are the with terms of two APs: 63, 65, 67, . . . ...

    Text Solution

    |

  13. How many multiples of 4 lie between 10 and 250?

    Text Solution

    |

  14. How many three digit numbers are divisible by 7?

    Text Solution

    |

  15. Three numbers are in A.P. If the sum of these numbers be 27 and the...

    Text Solution

    |

  16. Find the four numbers in A.P., whose sum is 50 and in which the gre...

    Text Solution

    |

  17. Find the value of x for which (8x+4),\ (6x-2) and (2x+7) are in A.P...

    Text Solution

    |

  18. If x+1,\ 3x and 4x+2 are in A.P., find the value of x .

    Text Solution

    |

  19. Show that (a-b)^2,\ (a^2+b^2) and (a+b)^2 are in A.P.

    Text Solution

    |

  20. Find the sum of 20 terms of the AP 1, 4, 7, 10,....

    Text Solution

    |