Home
Class 14
MATHS
If log5 (x^2+x)-log5 (x+1)=2, then the v...

If `log_5 (x^2+x)-log_5 (x+1)=2,` then the value of `x` is a. `5` b. `10` c. `25` d. `32`

Promotional Banner

Topper's Solved these Questions

  • LINE GRAPH

    RS AGGARWAL|Exercise All Questions|28 Videos

  • NUMBER SYSTEM

    RS AGGARWAL|Exercise All Questions|432 Videos

Similar Questions

Explore conceptually related problems

If "log"_(5)("log"_(5)("log"_(2)x)) =0 then the value of x, is

If log_(5) log_(5) log_(3) x = 0 , then value of x is

log_5 ((2+x)/10)=log_5 (2/(x+1))

If x + log_(10) ( 1 + 2^(x)) = x log_(10) 5 + log_(10)6, then the value of x is

If log_(7)log_(5)(sqrt(x+5)+sqrt(x))=0, what is the value of x? a.2 c.3 c.4 d.5

If 3 +"log"_(5)x = 2"log"_(25) y , then x equals to

If log_(x)(4x^(log_(5)(x))+5)=2log_(5)x, then x equals to

RS AGGARWAL-LOGARITHMS-All Questions
  1. If log(12) 27=a, then log6 16 is a. (3-a)/(4(3+a)) b. (3+a)/(4(3-a)) c...

    Text Solution

    |

  2. If log10 5 + log10 (5x+1) = log10 ( x + 5) +1, then x is equal to

    Text Solution

    |

  3. If log5 (x^2+x)-log5 (x+1)=2, then the value of x is a. 5 b. 10 c. 25 ...

    Text Solution

    |

  4. 1/2 (logx + logy) will equal log((x+y)/2) if a. y=0 b. x=sqrt(y) c. x=...

    Text Solution

    |

  5. The value of (1/(log3 60)+1/(log4 60)+1/(log5 60)) is

    Text Solution

    |

  6. Evaluate log3 4.log4 5.log5 6.log6 7.log7 8.log8 9

    Text Solution

    |

  7. The value of 16^(log 45) is a. 5/(64) b. 5 c. 16 d. 25

    Text Solution

    |

  8. If logx+logy=log(x+y), then a. x=y b. x y=1 c. y=(x-1)/x d. y=x/(x-1)

    Text Solution

    |

  9. If log\ a/b+log\ b/a=log(a+b), then a. a+b=1 b. a-b=1 c. a=b d. a^2-b^...

    Text Solution

    |

  10. [log(a^2/(bc))+log(b^2/(ac))+log(c^2/(ab))] is equal to a. 0 b. 1 c. 2...

    Text Solution

    |

  11. 1/(loga(b))xx1/(logb(c))xx1/(logc(a)) is equal to

    Text Solution

    |

  12. Simplify: 1/(1+(log)a b c)+1/(1+(log)b c a)+1/(1+(log)c a b)

    Text Solution

    |

  13. 1/log(a/b)x+1/log(b/c)x+1/log(c/a)x is equal to:

    Text Solution

    |

  14. If log(10)7=a ,\ then\ log(10)(1/70) is equal to a. -(1+a) b. a/(10) c...

    Text Solution

    |

  15. If a=b^x ,\ b=c^y and \ c=a^z , then the value of x y z is equal to ...

    Text Solution

    |

  16. If logx-5log3=-2 then x equals a. 0.8 b. 0.81 c. 1.25 d. 2.43

    Text Solution

    |

  17. If a=b^2=c^3=d^4, then the value of loga (a b c d) would be a. (log)a...

    Text Solution

    |

  18. If "log"(3) x + "log"(9)x^(2) + "log"(27)x^(3) = 9, then x =

    Text Solution

    |

  19. If log7 log5 (sqrt(x+5)+sqrt(x))=0, what is the value of x ? a. 2 b. 3...

    Text Solution

    |

  20. If a=log8 225\ and\ b=log2 15, then a in terms of b is a. b/2 b. b c. ...

    Text Solution

    |