Home
Class 11
MATHS
Solve log(2)|4-5x| gt 2....

Solve ` log_(2)|4-5x| gt 2`.

A

`(8//5, oo)`

B

`(4//5, 8//5)`

C

`(-oo, 0)cup(8//5, oo)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C

We have,
`"log"_(2)|4-5x|gt 2`
`rArr |4-5x| gt 2^(2)`
`rArr |4-5x|gt 4`
`rArr 4-5x lt - 4 "or,"4-5x gt 4`
`rArr x gt (8)/(5)"or" x lt 0 rArr x in (-oo, 0) cup (8//5, oo)`
Promotional Banner

Topper's Solved these Questions

  • LOGARITHMS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Section II - Assertion Reason Type|8 Videos
  • LOGARITHMS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Exercise|66 Videos
  • LOGARITHMS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|21 Videos
  • INEQUALITIES

    OBJECTIVE RD SHARMA ENGLISH|Exercise EXERCISE SECTION-II (Assertion-Reason )|1 Videos
  • MATRICES

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|30 Videos

Similar Questions

Explore conceptually related problems

Solve log_(3)|x|gt 2 .

Solve log_(2)(x-1) gt 4 .

Solve log_(2).(x-1)/(x-2) gt 0 .

Solve log_(3x -2) x^(2) gt log _(3x-2) (3x -2)

Solve : log_(2)(4-x)=4-log_(2)(-2-x)

Solve : log_(1-2x)(6x^(2)-5x+1)-log_(1-3x)(4x^(2)-4x+1)=2

Solve , log_((2x -3)) (x^(2) - 5x + 7) = 2

Solve : log_(3)x . log_(4)x.log_(5)x=log_(3)x.log_(4)x+log_(4)x.log_(5)+log_(5)x.log_(3)x .

Solve log_(2)(25^(x+3)-1) = 2 + log_(2)(5^(x+3) + 1) .

Solve log_(2)(25^(x+3)-1) = 2 + log_(2)(5^(x+3) + 1) .

OBJECTIVE RD SHARMA ENGLISH-LOGARITHMS-Section I - Solved Mcqs
  1. If the left hand side of the equation a(b-c)x^2+b(c-a) xy+c(a-b)y^2=...

    Text Solution

    |

  2. If loga/(b-c) = logb/(c-a) = logc/(a-b), then a^(b+c).b^(c+a).c^(a+b)...

    Text Solution

    |

  3. Solve log(2)|4-5x| gt 2.

    Text Solution

    |

  4. The sum of the series "log"(4)2-"log"(8)2 + "log"(16)2- "log"(32) 2...

    Text Solution

    |

  5. If log0.3(x-1)ltlog0.09(x-1), then x lies in the interval

    Text Solution

    |

  6. The values of x satisfying x^("log"(5)) gt5 lie in the interval

    Text Solution

    |

  7. The solution set of the equation "log"(x)2 xx "log"(2x)2 = "log"(4x...

    Text Solution

    |

  8. Solve log(0.2). (x+2)/x le 1.

    Text Solution

    |

  9. Solve for x: 5^(log x) + 5x^(log 5) =3 (a>0)

    Text Solution

    |

  10. The number of solutions of "log"("sin"x)(2^(" tan"x)) gt 0 in the inte...

    Text Solution

    |

  11. The set of real values of x for which 2^("log"(sqrt(2))(x-1)) gt x+...

    Text Solution

    |

  12. Find the number of solution to equation log(2)(x+5) = 6 - x:

    Text Solution

    |

  13. The set of values of x for which "log"(e) x gt (x-2)/(x), is

    Text Solution

    |

  14. The number of solutions of the equation 3"log"(3)|-x| = "log"(3) x^(...

    Text Solution

    |

  15. The number of values of x satisfying 1 +"log"(5) (x^(2) + 1) ge "lo...

    Text Solution

    |

  16. The number of ordered pairs (x, y) satisfying 4("log"(2) x^(2))^(2) +...

    Text Solution

    |

  17. The value of (1)/(log(bc)abc)+(1)/(log(ca)abc)+(1)/(log(ab)abc) is equ...

    Text Solution

    |

  18. Complete set of solution of log (1//3) (2 ^(x +2) - 4 ^(x)) ge -2 is :

    Text Solution

    |

  19. The value of e^("log"(e) x+ "log"(sqrt(e)) x+ "log"(root(3)(e)) x +...

    Text Solution

    |

  20. IF x=198! then value of the expression 1/(log2x)+1/(log3x)+...+1/(log1...

    Text Solution

    |