Home
Class 12
MATHS
The determinant |a b aalpha+bb c balpha+...

The determinant `|a b aalpha+bb c balpha+c aalpha+bbalpha+c0|=0,` if `a ,b , c` are in A.P. `a ,b ,c` are in G.P. `a ,b ,c` are in H.P. `alpha` is a root of the equation `a x^2+b c+c=0` `(x-alpha)` is a factor of `a x^2+2b x+c`

Promotional Banner

Topper's Solved these Questions

  • COMPOUND ANGLES

    ALLEN|Exercise EX -JA|8 Videos
  • INVERSE TRIGONOMETRIC FUNCTIONS

    ALLEN|Exercise All Questions|147 Videos

Similar Questions

Explore conceptually related problems

If a,b,c, are in A.P., b,c,d are in G.P. and c,d,e, are in H.P., then a,c,e are in

If a,b,c are in A.P. then the roots of the equation (a+b-c)x^2 + (b-a) x-a=0 are :

the determinant |{:(a,,b,,aalpha+b),(b,,c,,balpha+c),(aalpha+b,,balpha+c,,0):}|=0 is equal to zero if

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

If the determinant |(a ,b,2aalpha+3b),(b, c,2balpha+3c),(2aalpha+3b,2balpha+3c,0)|=0 then (a) a , b , c are in H.P. (b) alpha is root of 4a x^2+12 b x+9c=0 or(c) a , b , c are in G.P. (d) a , b , c , are in G.P. only a , b ,c are in A.P.

If the determinant |[a,b,2aalpha+3b],[b,c,2balpha+3c],[2aalpha+3b,2balpha+3c,0]|=0 then (a) a , b , c are in H.P. alpha is root of 4a x^2+12 b x+9c=0 or a , b , c are in G.P. a , b , c , are in G.P. only a , b ,c are in A.P.

If a ,b ,c are in A.P., the a/(b c),1/c ,1/b will be in a. A.P b. G.P. c. H.P. d. none of these

If x ,ya n dz are in A.P., a x ,b y ,a n dc z in G.P. and a ,b ,c in H.P. then prove that x/z+z/x=a/c+c/a .

If a^2+b^2,a b+b c and b^2+c^2 are in G.P., then a ,b ,c are in a. A.P. b. G.P. c. H.P. d. none of these

If a^2+b^2,a b+b c ,a n db^2+c^2 are in G.P., then a ,b ,c are in a. A.P. b. G.P. c. H.P. d. none of these

ALLEN-DETERMINANTS-All Questions
  1. The maximum value of Δ= ∣ ∣ ∣ ​ 1 1 1+cosθ ​ 1 1+sinθ 1 ​ 1...

    Text Solution

    |

  2. If f^(prime)(x)=|[mx, mx-p, m x+p], [n, n+p, n-p], [mx+2n, m x+2n+p, m...

    Text Solution

    |

  3. The determinant |a b aalpha+bb c balpha+c aalpha+bbalpha+c0|=0, if a ...

    Text Solution

    |

  4. Let f(x)=|1+sin^2x cos^2x4s in2xsin^2\ \ x1+cos^2x4s in2xsin^2xcos^...

    Text Solution

    |

  5. The parameter on which the value of the determinant |[1,a...

    Text Solution

    |

  6. If a^2+b^2+c^2=-2a n df(x)= |1+a^2x(1+b^2)x(1+c^2)x(1+a^2)x1+b^2x(1+c...

    Text Solution

    |

  7. Given that q^2-p r ,0,\ p >0, then the value of |p q p x+q y q r...

    Text Solution

    |

  8. The values of θ lying between 0 and π/2 and satisfying the equation ...

    Text Solution

    |

  9. If |(a, a, x,),(m, m, m),(b, x, b)|=0 then x may be equal to- a.a b. ...

    Text Solution

    |

  10. If ∣ -a a^2 ab ac ab -b^2 bc ac bc -c^2 | = ka^2b^2c^2...

    Text Solution

    |

  11. The value of the determinant |(alpha,beta,l),(alpha,x, n),(alpha,beta,...

    Text Solution

    |

  12. If the system of linear equations x+a y+a z=0,\ x+b y+b z=0,\ x+c y+...

    Text Solution

    |

  13. If the system of equations x+y-3=0,\ (1+K)x+(2+K)y-8=0\ &\ x-(1+K)y+(2...

    Text Solution

    |

  14. If the determinant |a+p l+x u+fb+q x+y v+gc+r n+z w+h| splits into exa...

    Text Solution

    |

  15. The values of lambda for which the system of euations x+y+z=6x+2y+3z=1...

    Text Solution

    |

  16. If x , y , z are in A.P. , then the value of the determinant are in A....

    Text Solution

    |

  17. Let p be the sum of all possible determinabnts of order 2 having 0,...

    Text Solution

    |

  18. Find A for 2sinAcosA−cosA−2sinA+1=0 ;-

    Text Solution

    |

  19. Statement 1 is True: Statement 2 is True; Statement 2 is a correct ...

    Text Solution

    |

  20. Statement I: If a ,\ \ b , c in R\ a n d a!=b!=c\ a n d\ x ,\ y ,\ z ...

    Text Solution

    |