Home
Class 12
MATHS
If the equation x^2 -2mx+7m-12 =0 ha...

If the equation ` x^2 -2mx+7m-12 =0` has equal roots then m=

A

2 or 3

B

3 or 4

C

4 or 5

D

5 or 6

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EXPRESSIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1B (QUADRATIC EXPRESSIONS)|106 Videos

  • QUADRATIC EXPRESSIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 ( SPECIAL TYPE QUESTIONOS ) ( SET -1)|4 Videos

  • QUADRATIC EXPRESSIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 ( SPECIAL TYPE QUESTIONOS ) ( SET -4)|4 Videos

  • PROPERTIES OF TRIANGLES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) Set-4|10 Videos

  • RELATIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise Exercise|49 Videos

Similar Questions

Explore conceptually related problems

If the equation x^(2) - kx + 1 = 0 has equal roots. Then

If the equation x^(2)-x+ m^(2) = 0 has no real roots then m can satisfy

If the equation kx^(2) - 2kx + 6 = 0 has equal roots, then find the value of k.

If x^(2) - 8kx + 16 = 0 has equal roots then ….

If the equation x ^(2) - 15 - m ( 2x-8) =0 has equal roots, find the value of 'm'.

"If" kx (x -2) + 6 = 0 has equal roots then k =

If one root of x^2+ax +8=0 is 4 and the equation x^2 + ax +b=0 has equal roots then the value of b=

If m , in Z and the equation mx^2 +(2m -1)x:(m-2)=0 has rational roos them m is of the form

IF one root of the equation x^2 +px +12=0 is 4, while the equation x^2+px + q=0 has equal roots then the the value of q is

DIPTI PUBLICATION ( AP EAMET)-QUADRATIC EXPRESSIONS-EXERCISE 1A (QUADRATIC EQUATIONS)
  1. if 0 < a < b> 0 nad c > 0 then both the roots of the equation 2...

    Text Solution

    |

  2. IF p,q,in { 1,2,3.4} the number of equation of the form px^2 +q...

    Text Solution

    |

  3. If the equation x^2 -2mx+7m-12 =0 has equal roots then m=

    Text Solution

    |

  4. IF the roots of (3m +1) x^2 +2(m+1) x+m =0 are equal then m=

    Text Solution

    |

  5. IF the roots of x^2-2(5 + 2k ) x+ 3 (7+10k) are equal then ...

    Text Solution

    |

  6. If the quadratic expression x^2 -(a-1) x+ (a+ (1)/(4) ) will be...

    Text Solution

    |

  7. IF (x-a)(x-b) +(x-b) (x-c) +(x-a)(x-c) =0 has equal roots then ...

    Text Solution

    |

  8. If c^(2) ne ab and the roots of (c^(2)-ab)x^(2)-2(a^(2)-bc)x+(b^(2)-ac...

    Text Solution

    |

  9. The roots of the equation ( a-b) x^2 +(b-c) x+ (c-a) =0 are

    Text Solution

    |

  10. The roots of the equation a ( b-c) x^2 -b(c-a) x+c(a-b)=0 are

    Text Solution

    |

  11. If p(q-r) x^2 +q(r-p) x+r(p-q) =0 has equal roots then 2/q =

    Text Solution

    |

  12. IF the roots of (b-c) x^2+ (c-a) x+ (a-b) =0 are equal then ...

    Text Solution

    |

  13. IF the roots of a(b-c)x^2+b (c-a) x+c (a-b)=0 are equal then a, ...

    Text Solution

    |

  14. If the roots of (a^2+b^2 ) x^2 -2b(a+c)x+(b^2 +c^2 ) =0 are equal...

    Text Solution

    |

  15. IF the sum of the roots of ax^2+bx+c=0 is equal to the sum of the squa...

    Text Solution

    |

  16. IF alpha , beta are the roots of the equation ax^2 + bx +c=0 ...

    Text Solution

    |

  17. IF 3+ 4i is a root of the equation x^2 +px +q=0 then

    Text Solution

    |

  18. IF 3+i is a root of the equation x^2 + ax + b=0 then a=

    Text Solution

    |

  19. IF one root of the quadratic equation ax^2+bx +c=0 is 3-4i the...

    Text Solution

    |

  20. IF (1-p) is a root of quadratic equation X^2 +px +(1-p)=0 the...

    Text Solution

    |