Home
Class 12
MATHS
Using properties of determinant prove th...

Using properties of determinant prove that `|{:(alpha,beta,gamma),(alpha^2,beta^2,gamma^2),(beta+gamma,gamma+alpha,alpha+beta):}|=(alpha-beta)(beta-gamma)(gamma-alpha)(alpha+beta+gamma)`

Promotional Banner

Topper's Solved these Questions

  • TEST PAPER 5

    MODERN PUBLICATION|Exercise PROBLEM|41 Videos
  • TEST PAPER 7

    MODERN PUBLICATION|Exercise EXERCISE|39 Videos

Similar Questions

Explore conceptually related problems

If "cos"^(-1)alpha+"cos"^(-1)beta+"cos"^(-1)gamma=3pi , then find alpha(beta+gamma)+beta(gamma+alpha)+gamma(alpha+beta) .

int 2 sin (alpha-beta) x sin (alpha+beta) x dx

If A_(alpha)=[{:(cosalpha,sinalpha),(-sinalpha,cosalpha):}] , then prove that A_(alpha)A_(beta)=A_(alpha+beta) .

Given cos alpha+cos beta +cos gamma=sin alpha+sin beta +sin gamma=0 Show that cos3 alpha+cos3 beta+cos 3gamma = 3 cos(alpha +beta+ gamma)

The coordinates of the vertices of a triangle are (alpha_1 , beta_1) , (alpha_2 , beta_2) and (alpha_3 , beta_3) Prove that the coordinates of its centroid are (alpha_1 + alpha_2 + alpha_3)//(3) , (beta_1 + beta_2 + beta_3)//(3) .

If 2tanalpha=3tanbeta , then prove that then show that tan(alpha-beta)=(sin2beta)/(5-cos2beta)

If cosalpha=cosbeta , then alpha+beta= ____

MODERN PUBLICATION-TEST PAPER 6-EXERCISE
  1. Using determinants, find the values of a if the area of triangle with ...

    Text Solution

    |

  2. If A,B,C are matrices of order 2xx2 each and 2A+B+C =[[1,2],[3,0]] A+B...

    Text Solution

    |

  3. Using properties of determinant prove that |{:(alpha,beta,gamma),(alph...

    Text Solution

    |

  4. Differentiate tan^-1((2x)/(1-x^2)).

    Text Solution

    |

  5. Examine continuity and differentiability f(x)={[xsin1/x,if x!=0],[0,if...

    Text Solution

    |

  6. Find dy/dx if y=(cosx)^x.

    Text Solution

    |

  7. Find the tangent to the curve y = cos (x + y), 0 le x le 2pi which is ...

    Text Solution

    |

  8. Find the interval where y=sin2x-cos2x,xin[0,2pi] is (a) incresing (b)...

    Text Solution

    |

  9. Evaluate:int (sin x-xcosx)/(x(x+sinx)) dx.

    Text Solution

    |

  10. Integrate : int sin^(-1)xdx.

    Text Solution

    |

  11. Find the particular solution of d^2 y/dx^2 =2x,given that x=0,y=2 and ...

    Text Solution

    |

  12. Solve :-(x^2+y^2)dx-2xy dy=0

    Text Solution

    |

  13. If with reference to the eight handed system of mutually perpendicular...

    Text Solution

    |

  14. If vec a =(2,3,6), vec b=(2,-2,1), vec c=(-1,0,2), find the direction ...

    Text Solution

    |

  15. Find the equation of the plane passing through (1, 3,4), (2, 1.-1) an...

    Text Solution

    |

  16. Find the equation of the plane passing through the line (x-8)/3=(y+19)...

    Text Solution

    |

  17. Find the distance of the point (-1,-5,-10) from the point of intersect...

    Text Solution

    |

  18. Let A=Rxx R and be the binary operation on A defined by (a, b) *(c,d) ...

    Text Solution

    |

  19. Let A=R-{3/5} Br f:ArarrA defined as f(x)=(3x+2)/(5x-3). Br show that ...

    Text Solution

    |

  20. Prove the following: |[ax-by-cz,ay+bx,az+cx],[bx+ay,by-cz-ax,bz+cy],...

    Text Solution

    |