Home
Class 11
MATHS
If P is the number of natural numbers wh...

If P is the number of natural numbers whose logarithms to the base 10 have the the charecteristic p and Q is the numbers of natural numbers logarithms of whose reciprocal to the base 10 have the charecteristics -q. then find the value of `log_(10) P-log_(10) Q`

Text Solution

Verified by Experts

`10^p<=p<10^(p+1)`
`p=10^(p+1)-10^p`
`=10^p*q`
`=9.10^p`
Simialrly,
`10^(q-1)ltQ<=10^q`
`Q=10^q-10^(q-1)`
`=9*10^(q-1)`
...
Promotional Banner

Topper's Solved these Questions

  • LINEAR INEQUALITIES

    CENGAGE|Exercise Solved Examples And Exercises|67 Videos
  • PERMUTATIONS AND COMBINATIONS

    CENGAGE|Exercise Solved Examples And Exercises|433 Videos

Similar Questions

Explore conceptually related problems

The number of integers the logarithms of whose reciprocal to the base 10 have the characteristic -n are-

If A is the number of integers whose logarithms to the base 10 have characteristic 11 and B then of integers,the logarithm of whose reciprocals to the base 10 have characteristic 4, then the (log_(10)A-log_(10)B) is equal to

CENGAGE-LOGARITHM-Solved Examples And Exercises
  1. Solve the following equation of x : 2(log)x a+(log)(a x)a+3(log)(a^2x)...

    Text Solution

    |

  2. Solve for x :4^x-3^(x-1/2)=3^(x+1/2)-2^(2x-1)

    Text Solution

    |

  3. If P is the number of natural numbers whose logarithms to the base 10 ...

    Text Solution

    |

  4. Find the compound interest on Rs. 12000 for 10 years at the rate of 12...

    Text Solution

    |

  5. If x=(log)(2a)a , y=(log)(3a)2a ,z=(log)(4a)3a ,prove that 1+x y z=2y...

    Text Solution

    |

  6. Let L denote antilog32 0.6 and M denote the number of positive integer...

    Text Solution

    |

  7. Let x=(0. 15)^(20)dot Find the characteristic and mantissa of the loga...

    Text Solution

    |

  8. Using logarithms, find the value of 6.45 x 981.4

    Text Solution

    |

  9. In the 2001 census, the population of India was found to be 8. 7 * 10^...

    Text Solution

    |

  10. If (log)(10)2=0. 30103 ,(log)(10)3=0. 47712 , then find the number of...

    Text Solution

    |

  11. If a=(log)(12)18 , b=(log)(24)54 , then find the value of a b+5(a-b)do...

    Text Solution

    |

  12. Solve the equations for x and y:(3x)^(log3)=(4y)^(log 4), 4 ^(log x) ...

    Text Solution

    |

  13. The real solutions of the equation 2^(x+2). 5^(6-x)=10^x^2 is/are 1 (b...

    Text Solution

    |

  14. If (log)k xdot(log)5k=(log)x5,k!=1,k >0, then x is equal to (a) k (...

    Text Solution

    |

  15. If p , q in N satisfy the equation x^sqrt(x)=(sqrt(x))^x, then pa n...

    Text Solution

    |

  16. Solution set of the inequality (log)(0. 8)((log)6(x^2+x)/(x+4))<0 is (...

    Text Solution

    |

  17. Which of the following is not the solution of (log)3(x^2-2)<(log)3(3/2...

    Text Solution

    |

  18. The true solution set of inequality (log)((x+1))(x^2-4)>1 is equal to ...

    Text Solution

    |

  19. Solve the following equation of x :2(log)x a+(log)(a x)a+3(log)(a^2x)a...

    Text Solution

    |

  20. The x , y , z are positive real numbers such that (log)(2x)z=3,(log)(5...

    Text Solution

    |