Home
Class 12
MATHS
If [{:(a+4,3b),(8,-6):}]=[{:(2a+2,b+2),(...

If `[{:(a+4,3b),(8,-6):}]=[{:(2a+2,b+2),(8,a-8b):}]` then write the value if a-2b .

Promotional Banner

Topper's Solved these Questions

  • MODEL QUESTION PAPER-2

    SHARAM PUBLICATION|Exercise EXERCISE|39 Videos
  • MODEL QUESTION PAPER-4

    SHARAM PUBLICATION|Exercise EXERCISE|41 Videos

Similar Questions

Explore conceptually related problems

If A=[{:(8,0),(4,-2),(3,6):}]andB=[{:(2,-2),(4,2),(-5,1):}] ,thenfind the matrix X , such that 2A+3X=5B.

If A = [{:(0,2),(3,-4):}] and KA = [{:(0, 3a),(2b, 24):}], then find value of a,b and k.

Using elementary row transformation , find the inverse of the matrix A=[{:(3,-1),(-4,2):}] .If A^(-1)=(1)/(2)[{:(2,a),(b,3):}] , then find the values of a and b .

If A=[{:(2,1):}],B=[{:(5,3,4),(8,7,6):}]andC=[{:(-1,2,1),(1,0,2):}] then verify that A(B+C)=AB+AC .

If A=[{:(2,4,0),(3,9,6):}]andB=[{:(1,4),(2,8),(1,3):}] then verify that (AB)'=B'A'.

If A=[{:(2,2),(-3,1),(4,0):}],B=[{:(6,2),(1,3),(0,4):}]andC=[{:(-8,-4),(2,-4),(-4,-4):}] , then verify the associaltive law with respect to addition i.e A+(B+C)=(A+B)+C .

If [{:(x+3,z+4,2y-7),(-6,a-1,0),(b-3,-21,0):}]=[{:(0,6,3y-2),(-6,-3,2c+2),(2b+4,-21,0):}] then find the values of a,b,c,and z .

SHARAM PUBLICATION-MODEL QUESTION PAPER-3-EXERCISE
  1. Write fog, if f :R to R and g:R to R are given by f(x)= 8x^(3) and g(x...

    Text Solution

    |

  2. write the principal value of sin^(-1)[sin((3pi)/5)].

    Text Solution

    |

  3. If [{:(a+4,3b),(8,-6):}]=[{:(2a+2,b+2),(8,a-8b):}] then write the val...

    Text Solution

    |

  4. Evaluate the following determinants. [[1,x,y],[0,sinx,siny],[0,cosx,c...

    Text Solution

    |

  5. What is (dy)/(dx) at t=(3pi)/4 when x= a cos^3t, and y = a sin t.

    Text Solution

    |

  6. Write the set of values of k for which the function f (x) = kx-sinx is...

    Text Solution

    |

  7. Write the value of int(x + cos6x)/(3x^2+sin6x)dx.

    Text Solution

    |

  8. Find the particular solution of the differential equation (dy)/(dx)=3...

    Text Solution

    |

  9. If veca and vecb are unit vectors and veca+vecb is also a unit vector,...

    Text Solution

    |

  10. If the cartesian equation of a line is (3-x)/5=(y+4)/7=(2z-6)/4 then w...

    Text Solution

    |

  11. If Z is the set of all integers and R is the relation on Z defined as...

    Text Solution

    |

  12. If A = {1, 2, 3}, B = {4, 5, 6, 7} and f = {(1, 4), (2, 5), (3, 6)} i...

    Text Solution

    |

  13. if ** is the binary operation on N given by a**b= L. C. M of a and b. ...

    Text Solution

    |

  14. Prove that tan^(-1)sqrt(x) =(1)/(2) cos^(-1)((1-x)/(1+x)), x in (0, 1)...

    Text Solution

    |

  15. Sole the following LPP graphically Maximise Z=6x(1)+7x(2) Subject ...

    Text Solution

    |

  16. If A=[{:(1,-2,2),(3,1,-1):}]andB=[{:(2,4),(1,2),(3,-1):}] , then veri...

    Text Solution

    |

  17. Using elementary operation find the inverse of [(2,3),(5,7)]

    Text Solution

    |

  18. Prove that the following. [[a-b-c,2a,2a],[2b,b-c-a,2b],[2c,2c,c-a-b]]=...

    Text Solution

    |

  19. Prove the following: [[b^2-ab,b-c,bc-ac],[ab-a^2,a-b,b^2-ab],[bc-ac,...

    Text Solution

    |

  20. Find the value of k if the function f(x) defined by f(x)={(2x-1,when x...

    Text Solution

    |