Home
Class 12
MATHS
The minimum value of the sum of real num...

The minimum value of the sum of real numbers `a^(-5),a^(-4),3a^(-3),1,a^(8)" and "a^(10)" with "agt0` is

Text Solution

AI Generated Solution

To find the minimum value of the sum \( S = a^{-5} + a^{-4} + 3a^{-3} + 1 + a^{8} + a^{10} \) for \( a > 0 \), we can use the Arithmetic Mean-Geometric Mean (AM-GM) inequality. ### Step-by-Step Solution: 1. **Identify the Terms**: The terms in the sum are \( a^{-5}, a^{-4}, a^{-3}, a^{-3}, a^{-3}, 1, a^{8}, a^{10} \). 2. **Count the Number of Terms**: ...
Promotional Banner

Topper's Solved these Questions

  • SEQUENCES AND SERIES

    ARIHANT MATHS|Exercise Exercise (Subjective Type Questions)|24 Videos
  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|21 Videos
  • SETS, RELATIONS AND FUNCTIONS

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|12 Videos

Similar Questions

Explore conceptually related problems

The minimum value of the sum of real number a^(-5),a^(-4),3a^(-3),1,a^(8) and a^(10) with a>0 is

The minimum value of 3cox + 4 sinx + 8 is

The sum of two non-zero numbers is 8 ,the minimum value of the sum of their reciprocals is (1)/(4) (b) (1)/(2) (c) (1)/(8) (d) none of these

If a>0, then minimum value of a+2a^(2)+a^(3)+15+a^(-1)+a^(-3)+a^(-4) is

The value of the expression sum_(theta=0)^(8)(1)/(1+tan^(3)(10 theta)^(@)) equals

ARIHANT MATHS-SEQUENCES AND SERIES-Exercise (Questions Asked In Previous 13 Years Exam)
  1. Le a1, a2, a3, ,a(11) be real numbers satisfying a2=15 , 27-2a2>0a n ...

    Text Solution

    |

  2. A person is to cout 4500 currency notes. Let a(n) denotes the number o...

    Text Solution

    |

  3. The minimum value of the sum of real numbers a^(-5),a^(-4),3a^(-3),1,a...

    Text Solution

    |

  4. A man saves Rs. 200 in each of the first three months of his service. ...

    Text Solution

    |

  5. Let a(n) be the nth term of an AP, if sum(r=1)^(100)a(2r)=alpha " and ...

    Text Solution

    |

  6. If a(1),a(2),a(3),"......" be in harmonic progression with a(1)=5 and ...

    Text Solution

    |

  7. Statement 1 The sum of the series 1+(1+2+4)+(4+6+9)+(9+12+16)+"……."+(...

    Text Solution

    |

  8. If 100 times the 100th term of an AP with non-zero common difference e...

    Text Solution

    |

  9. If x,y,z are in AP and tan^(-1)x,tan^(-1)y,tan^(-1)z are also in AP, ...

    Text Solution

    |

  10. The sum of first 20 terms of the sequence 0.7,0.77,0.777,"……" is

    Text Solution

    |

  11. Let S(n)=sum(k=1)^(4n)(-1)^((k(k+1))/(2))*k^(2), then S(n) can take va...

    Text Solution

    |

  12. A pack contains n cards numbered from 1 to n. Two consecutive numbered...

    Text Solution

    |

  13. If (10)^(9)+2(11)^(1)(10)^(8)+3(11)^(2)(10)^(7)+"........"+(10)(11)^(9...

    Text Solution

    |

  14. Three positive numbers form an increasing GP. If the middle terms in t...

    Text Solution

    |

  15. Let a,b,c be positive integers such that (b)/(a) is an integer. If a,b...

    Text Solution

    |

  16. The sum of first 9 terms of the series (1^(3))/(1)+(1^(3)+2^(3))/(1+3)...

    Text Solution

    |

  17. If m is the AM of two distinct real numbers l and n (l,ngt1) and G(1)...

    Text Solution

    |

  18. Soppose that all the terms of an arithmetic progression (AP) are natur...

    Text Solution

    |

  19. If the 2(nd), 5(th) and 9(th) term of A.P. are in G.P. then find the c...

    Text Solution

    |

  20. If the sum of the first ten terms of the series (1 3/5)^2+(2 2/5)^2+(3...

    Text Solution

    |