Home
Class 12
MATHS
Prove that abs[[y+k,y,y],[y,y+k,y],[y,...

Prove that
`abs[[y+k,y,y],[y,y+k,y],[y,y,y+k]]=k^2(3y+k)`

Promotional Banner

Topper's Solved these Questions

  • CONTINUITY AND DIFFERENTIABILITY

    V PUBLICATION|Exercise QUESTION BANK|168 Videos
  • DIFFERENTIAL EQUATIONS

    V PUBLICATION|Exercise QUESTION BANK|149 Videos

Similar Questions

Explore conceptually related problems

By using properties of determinants, prove that |[y+k,y,y],[y,y+k,y],[y,y,y+k]|=k^2(3y+k)

prove that abs[[a,b,c],[a+2x,b+2y,c+2z],[x,y,z]]=0

Using properties of determinants prove abs[[x,y,x+y],[y,x+y,x],[x+y,x,y]]=-2(x^3+y^3)

Without expanding prove that abs[[x+y,y+z,z+x],[z,x,y],[1,1,1]]=0

Prove that abs[[1,x,x^2],[1,y,y^2],[1,z,z^2]]=(x-y)(y-z)(z-x)

By using properties of determinants, prove that |[x+y+2z,x,y],[z,y+z+2x,y],[z,x,z+x+2y]|=2(x+y+z)^3

Evaluate |[x, y, x+y],[ y, x+y, x],[ x+y, x, y]|

If A(x_1, y_1), B(x_2, y_2) and C(x_3, y_3) are vertices of an equilateral triangle whose each side is equal to 'a', then prove that, |[x_1, y_1, 2 ],[ x_2, y_2, 2],[ x_3, y_3, 2]|^2=3 a^4

If a,b,c are in A.P, find value of |[2y+4,5y+7,8y+a],[3y+5,6y+8,9y+b],[4y+6,7y+9,10y+c]|

Prove that |(1,x,x^3),(1,y,y^3),(1,z,z^3)|=(x+y+z)(x-y)(y-z)(z-y) .

V PUBLICATION-DETERMINANT-QUESTION BANK
  1. Show that abs[[1,a,a^2],[1,b,b^2],[1,c,c^2]]=(a-b)(b-c)(c-a)

    Text Solution

    |

  2. By using properties of determinants, prove that |[x,x^2,yz],[y,y^2,zx...

    Text Solution

    |

  3. Prove that abs[[y+k,y,y],[y,y+k,y],[y,y,y+k]]=k^2(3y+k)

    Text Solution

    |

  4. By using properties of determinants, prove that |[x+y+2z,x,y],[z,y+z+...

    Text Solution

    |

  5. Using properties of determinants prove the following. abs[[1,x,x^2...

    Text Solution

    |

  6. Prove |[1+a^2-b^2, 2 a b, -2 b],[ 2 a b, 1-a^2+b^2, 2 a],[ 2 b,...

    Text Solution

    |

  7. By using the properties of determinants,prove that |[a^2+1,ab ,ac],[a...

    Text Solution

    |

  8. Let A be a square matrix of order 2x2 thenabs[KA] is equal to

    Text Solution

    |

  9. Which of the following is correct? a)Determinant is a square matrix ...

    Text Solution

    |

  10. Find the area of the triangle whose vertices are (3,8),(-4,2)and (5,1)

    Text Solution

    |

  11. Find the equation of the line joining A(1,3) and B(0,0) using determin...

    Text Solution

    |

  12. Find the area of the triangle with vertices at (1,0),(6,0),(4,3) using...

    Text Solution

    |

  13. Using the property of determinants,show that the points A(a,b+c),B(b...

    Text Solution

    |

  14. Find the values of k if area of triangle is 4 sq. units and vertices a...

    Text Solution

    |

  15. Find the equation of line joining (1,2) and (3,6) using determinants.

    Text Solution

    |

  16. If area of triangle is 35 sq. units with vertices (2,-6), (5,4) and (k...

    Text Solution

    |

  17. Find the minor of 1 in the determinant Delta=|[3, 4, 5 ],[2, 7, 1]...

    Text Solution

    |

  18. Find minors of element 6 in the determinant Delta=|[ 1, 2, 3],[ 4, ...

    Text Solution

    |

  19. Find minors and cofactors of the elements of the determinant |[1 , -2]...

    Text Solution

    |

  20. Find minors and cofactors of the elements a(11), a(21) in the determin...

    Text Solution

    |