Home
Class 12
MATHS
If |[1, x, x^2], [x, x^2, 1], [x^2, 1,...

If `|[1, x, x^2], [x, x^2, 1], [x^2, 1, x]|=3,` then find the value of `|[x^3-1, 0, x-x^4], [0, x-x^4, x^3-1], [x-x^4, x^3-1, 0]|`

Text Solution

Verified by Experts

` Delta_(c)=|{:(x^(3)-1,,0,,x-x^(4)),(0,,x-x^(4),,x^(3)-1),(x-x^(4)-1,,x^(3)-1,,0):}|`
is the determinant formed by the cofactors of determinant
`Delta = |{:(1,,x,,x^(2)),(x,,x^(2),,1),(x^(2),,1,,x):}|`
Hence `Delta_(c) =Delta^(2) =3^(2) =9`.
Promotional Banner

Topper's Solved these Questions

  • DETERMINANT

    CENGAGE ENGLISH|Exercise Multiple Correct Answer|5 Videos
  • DIFFERENT PRODUCTS OF VECTORS AND THEIR GEOMETRICAL APPLICATIONS

    CENGAGE ENGLISH|Exercise Multiple correct answers type|11 Videos

Similar Questions

Explore conceptually related problems

If |[x,-6,1],[2x,-3,3],[0,1,2]| =0 find the value of x

If [[x^2-4x,x^2],[x^2,x^3]] = [[-3,1],[-x+2,1]] (then find x)

Find the value of x if |[2, 1 ,x+1],[-1,3,-4],[0,-5,3]|=0

If x=2+sqrt(3) , then find the value of x^(4)-4x^(3)+x^(2)+x+1 .

If x-1/x=3,\ find the values of x^2+1/(x^2)a n d\ x^4+1/(x^4)dot

Find the value of int_0^1 2x^3-3x^2-x+1 3dxdot

Find the integral value of x , if |[x^2,x,1],[ 0, 2, 1],[ 3, 1, 4]|=28 .

If (a^2-1)x^2+(a-1)x+a^2-4a+3=0 is identity in x , then find the value of a .

If (a^2-1)x^2+(a-1)x+a^2-4a+3=0 is identity in x , then find the value of a .

If |(x+1,x-1),(x-3,x+2)|=|(4,-1),(1,3)| , then write the value of x .

CENGAGE ENGLISH-DETERMINANTS-All Questions
  1. If |[1, x, x^2], [x, x^2, 1], [x^2, 1, x]|=3, then find the value ...

    Text Solution

    |

  2. Prove that |cosalpha-cosbeta| le |alpha-beta|

    Text Solution

    |

  3. Statement 1: If b c+q r=c a+r p=a b+p q=-1, t h e n|a p a p b q b q c...

    Text Solution

    |

  4. If f(theta)=|sinthetacosthetasinthetacosthetasinthetacosthetacosthetas...

    Text Solution

    |

  5. If f(theta)=|[sin^2A,cot A,1],[sin^2B,cosB,1],[sin^2C,cosC,1]| , then...

    Text Solution

    |

  6. The roots of the equation |^x Cr^(n-1)Cr^(n-1)C(r-1)^(x+1)Cr^n Cr^n C(...

    Text Solution

    |

  7. Let Delta(x)=|[3,3x,3x^2+2a^2] , [3x, 3x^2+2a^2, 3x^3+6a^2x] , [3x^2+2...

    Text Solution

    |

  8. Consider a system of linear equation in three variables x,y,z a1x+b...

    Text Solution

    |

  9. If f(x)=|[a,-1, 0],[a x, a,-1],[a x^2,a x, a]|,using properties of det...

    Text Solution

    |

  10. If g(x)=(f(x))/((x-a)(x-b)(x-c)),w h e r ef(x) is a polynomial of degr...

    Text Solution

    |

  11. If (x)=|[x^2+4x-3 2x+4 13] [2x^2+5x-9 4x+5 26] [ 8x^2-6x+1 16 x-6 104]...

    Text Solution

    |

  12. If |y z-x^2z x-y^2x y-z^2x z-y^2x y-z^2y z-x^2x y-z^2y z-x^2z x-y^2|=|...

    Text Solution

    |

  13. Let f(n)=|nn+1n+2^n Pn^(n+1)P(n+1)^n Pn^n Cn^(n+1)C(n+1)^(n+2)C(n+2)| ...

    Text Solution

    |

  14. If |[ x^n ,x^(n+2) ,x^(2n)],[1 ,x^a , a ],[x^(n+5),x^(a+6),x^(2n+5)]...

    Text Solution

    |

  15. Let x<1, then value of |[x^2+2, 2x+1 ,1],[ 2x+1,x+2, 1],[ 3, 3 ,1]| is...

    Text Solution

    |

  16. Find the number of real root of the equation |[0,x-a, x-b],[ x+a,0,x-...

    Text Solution

    |

  17. Value of |[x+y, z,z ],[x, y+z, x],[y, y, z+x]|, where x ,y ,z are nonz...

    Text Solution

    |

  18. If e^(itheta)=costheta+isintheta, find the value of |[1,e^(ipi//3),e...

    Text Solution

    |

  19. Which of the following is not the root of the equation |[x,-6,-1],[ 2,...

    Text Solution

    |

  20. If A,B,C are the angles of a non right angled triangle ABC. Then find ...

    Text Solution

    |

  21. Let f(x)=a5x^5+a4x^4+a3x^3+a2x^2+a1x , where ai ' s are real and f(x)=...

    Text Solution

    |