Home
Class 12
MATHS
Solve the equationi log((x^(2)-1))(x^(3)...

Solve the equationi `log_((x^(2)-1))(x^(3)+6)=log_((x^(2)-1))(2x^(2)+5x)`

Text Solution

Verified by Experts

This equation is equivalent to the system
`{(2x^(2)+5xgt0),(x^(2)-1gt0),(x^(2)-1!=1),(x^(3)+6=2x^(2)+5x):}`impliesP(xlt-5/2` "and" xgt0),(xlt-1 "and "xgt1),(x!=+-sqrt(2)),(x=-2,1,3):}`
Hence `x_(1)=3` is only root of the original equation.`
Promotional Banner

Topper's Solved these Questions

  • THEORY OF EQUATIONS

    ARIHANT MATHS|Exercise Exercise For Session 1|11 Videos
  • THEORY OF EQUATIONS

    ARIHANT MATHS|Exercise Exercise For Session 2|10 Videos
  • THE STRAIGHT LINES

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|18 Videos
  • THREE DIMENSIONAL COORDINATE SYSTEM

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|44 Videos

Similar Questions

Explore conceptually related problems

Solve the equation log_((x^(3)+6))(x^(2)-1)=log_((2x^(2)+5x))(x^(2)-1)

Solve the equation log_(4)(2x^(2)+x+1)-log_(2)(2x-1)=1

log_((1)/(2))(x^(2)-5x+6)>-1

Solve the equation,log_(x^(2)+4x+5){log_(3x^(2)+4x+5)(x^(2)-3x)}=0

Solve the inequality: log_(x-2)(2x-3)>log_(x-2)(24-6x)

Solve the equation (1)/(2)log_(2007)(x^(2)+5x)=log_(2007)sqrt(x-3)

Solve log_(x)(x^(2)-1)<=0

The equation 9^(log_((1)/(3))(x+1))=5^(log_((1)/(5))(2x^(2)+1)), has

ARIHANT MATHS-THEORY OF EQUATIONS-Exercise (Questions Asked In Previous 13 Years Exam)
  1. Solve the equationi log((x^(2)-1))(x^(3)+6)=log((x^(2)-1))(2x^(2)+5x)

    Text Solution

    |

  2. In the quadratic equation ax^2 + bx + c = 0. if delta = b^2-4ac and al...

    Text Solution

    |

  3. Let S denote the set of all polynomials P(x) of degree lt=2 such th...

    Text Solution

    |

  4. If the roots of x^2-b x+c=0 are two consecutive integers, then b^2-4c ...

    Text Solution

    |

  5. If the equation a(n)x^(n)+a(n-1)x^(n-1)+..+a(1)x=0, a(1)!=0, n ge2, ha...

    Text Solution

    |

  6. If both the roots of the quadratic equation x^2-2kx+k^2+k-5=0 are less...

    Text Solution

    |

  7. Let aa n db be the roots of the equation x^2-10 c x-11 d=0 and those o...

    Text Solution

    |

  8. Let a,b,c be the sides of a triangle. No two of them are equal and lam...

    Text Solution

    |

  9. All the values of m for whilch both the roots of the equation x^2-2m x...

    Text Solution

    |

  10. If the roots of the quadratic equation x^2+p x+q=0 are tan30^0a n dtan...

    Text Solution

    |

  11. Let alpha,beta be the roots of the equation x^2-p x+r=0 and alpha/2,2b...

    Text Solution

    |

  12. If the difference between the roots of the equation x^2+a x+1=0 is les...

    Text Solution

    |

  13. Let a, b, c, p, q be the real numbers. Suppose alpha,beta are the ...

    Text Solution

    |

  14. The quadratic equations x^2""6x""+""a""=""0""a n d""x^2""c x""+""6"...

    Text Solution

    |

  15. How many real solutions does the equation x^7+14 x^5+16 x^3+30 x-560=0...

    Text Solution

    |

  16. Suppose the cubic x^(3)-px+q has three distinct real roots, where pgt0...

    Text Solution

    |

  17. The smallest value of k, for which both the roots of the equation, x^2...

    Text Solution

    |

  18. If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, ...

    Text Solution

    |

  19. Q. Let p and q real number such that p!= 0,p^2!=q and p^2!=-q. if alph...

    Text Solution

    |

  20. Conder the function f(x)=1+2x+3x^2+4x^3 Let the sum of all distinct ...

    Text Solution

    |

  21. Let alpha and beta be the roots of x^2-6x-2=0 with alpha>beta if an=al...

    Text Solution

    |