Home
Class 11
MATHS
If the sum of the first 14 terms of an A...

If the sum of the first 14 terms of an AP is 1050 and its first term is 10 , find the 20th term .

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • RELATIONS AND FUNCTIONS

    CENGAGE ENGLISH|Exercise All Questions|9 Videos

  • STRAIGHT LINES

    CENGAGE ENGLISH|Exercise All Questions|491 Videos

Similar Questions

Explore conceptually related problems

If the sum of the first 14 terms of an AP is 1050 and its first term is 10, find the 20^(t h) term.

If the sum of first 14 terms of an A.P. is 1050 and its first term is 10, find the 20^(th) term.

Sum of the first 14 terms of an AP is 1505 and its first term is 10. Find is 25th term.

The sum of first 14 terms of an AP is 1050 and its first term is 10, then find the 21st term of the AP.

The sum of first 14 terms of an AP is 1050 and its 14th terms 140. Find the 20th term.

The sum of the first 7 terms of an AP is 63 and the sum of its next 7 terms is 161. Find the 28th term of this AP.

The sum of15 terms of an A.P. is zero and its 4th term is 12. Find its 14th term.

If the sum of first 20 terms of an A.P. is same as the sum of its first 28 terms, find the sum of its 48 terms.

If sum of first 6 terms of an AP is 36 and that of the first 16 terms is 256 , then find the sum of first 10 terms.

If sum of first 6 terms of an AP is 36 and that of the first 16 terms is 256 , then find the sum of first 10 terms.

CENGAGE ENGLISH-SEQUENCES AND SERIES-All Questions
  1. Let a1, a2, a3, ,a(101) are in G.P. with a(101)=25a n dsum(i=1)^(201)...

    Text Solution

    |

  2. Let S=sum(n=1)^(9999)1/((sqrt(n)+sqrt(n+1)) (^4sqrt(n)+^4sqrt(n+1)) , ...

    Text Solution

    |

  3. If the sum of the first 14 terms of an AP is 1050 and its first term i...

    Text Solution

    |

  4. The next term of the G.P. x ,x^2+2,a n dx^3+10 is (729)/(16) b. 6 c. 0...

    Text Solution

    |

  5. If x^2+9y^2+25 z^2=x y z((15)/x+5/y+3/z),t h e n x ,y ,a n dz are ...

    Text Solution

    |

  6. If the sum of n terms of an A.P. is given by Sn=a+b n+c n^2, w h e r ...

    Text Solution

    |

  7. Let E=1/(1^2)+1/(2^2)+1/(3^2)+ Then, a.E<3 b. E >3//2 c. E...

    Text Solution

    |

  8. If 1+2x+3x^2+4x^3+oogeq4 , then a) least value of x is 1//2; b) grea...

    Text Solution

    |

  9. If p ,q ,a n dr are in A.P., then which of the following is/are true? ...

    Text Solution

    |

  10. If n >1 , the value of the positive integer m for which n^m+1 divides ...

    Text Solution

    |

  11. For an increasing A.P. a1, a2, an ifa1=a2+a3+a5=-12 and a1a3a5=80 , ...

    Text Solution

    |

  12. If p(x)=(1+x^2+x^4++x)/(1+x+x^2++x^(n-1)^(2n-2) is a polynomial in x ,...

    Text Solution

    |

  13. Q. Let n be an add integer if sin ntheta = sum(r=0)^n(br)sin^rtheta, f...

    Text Solution

    |

  14. Match the statements/expressions given in Column 1 with the values ...

    Text Solution

    |

  15. Let Sn=sum(k=1)^(4n)(-1)(k(k+1))/2k^2dot Then Sn can take value (s) 10...

    Text Solution

    |

  16. if a ,b ,c are in G.P.,then (log)a 10 ,(log)b10,(log)c 10 are in

    Text Solution

    |

  17. The 15th term of the series 2 1/2+1 7/(13)+1 1/9+(20)/(23)+ i s (10)/...

    Text Solution

    |

  18. Let a1, a2, a3, ,a(11) be real numbers satisfying a1=15 , 27-2a2>0 a ...

    Text Solution

    |

  19. Statement 1: Coefficient of x^(14) in (1+2x+3x^2+....+16 x^(15))^2 is ...

    Text Solution

    |

  20. If x^2+9y^2+25 z^2=x y z((15)/x+5/y+3/z), then x ,y ,a n dz are in a...

    Text Solution

    |