Home
Class 11
MATHS
if A=[(4,x+2),(2x-3,x+1)] is symmetric, ...

if `A=[(4,x+2),(2x-3,x+1)]` is symmetric, then x is equal to

A

3

B

5

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    OBJECTIVE RD SHARMA ENGLISH|Exercise Exercise|79 Videos

  • LOGARITHMS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|21 Videos

  • MEAN VALUE THEOREMS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Exercise|28 Videos

Similar Questions

Explore conceptually related problems

If the matrix, A= ((2,x+2),(2x-3,x+1)) is symmetric, find the value of x

If 3^(x)=4^(x-1) , then x is equal to

If the trace of the matrix A= [{:( x-1 ,0,2,5),( 3, x^(2) - 2 ,4,1),( -1,-2,x-3,1),(2,0,4,x^(2)-6) :}] is 0 then x is equal to

Let x=|(x1),(x2),(x3)|,A=|(1,-1, 2),( 2, 0, 1),( 3, 2, 1)|a n d B=[(3),( 2),( 1)]dotIfA X=B , Then X is equal to

If f(x)=x^(2)+4x-5andA={:[(1,2),(4,-3)]:} , then f(A) is equal to

If the graph of the function f(x)=(a^x-1)/(x^n(a^x+1)) is symmetrical about the y-axis ,then n equals (a)2 (b) 2/3 (c) 1/4 (d) 1/3

If |(x^2+x,x+1,x-2),(2x^2+3x-1,3x,3x-3),(x^2+2x+3,2x-1,2x-1)|=ax-12 then 'a' is equal to (1) 12 (2) 24 (3) -12 (4) -24

If |(x^2+x,x+1,x-2),(2x^2+3x-1,3x,3x-3),(x^2+2x+3,2x-1,2x-1)|=ax-12 then 'a' is equal to (1) 12 (2) 24 (3) -12 (4) -24

If N is any four digit number say x_1, x_2, x_3, x_4 , then the maximum value ofis equal to N/(x_1+x_2+x_3+x_4) is equal to

If |2x - 4| is equal to 2 and (x - 3)^2 is equal to 4, then what is the value of x?

OBJECTIVE RD SHARMA ENGLISH-MATRICES-Chapter Test
  1. For the system of equations: x+2y+3z=1 2x+y+3z=2 5x+5y+9z=4

    Text Solution

    |

  2. If {:A=[(3,1),(-1,2)]:}," then "A^(2)=

    Text Solution

    |

  3. if A=[(4,x+2),(2x-3,x+1)] is symmetric, then x is equal to

    Text Solution

    |

  4. If A+B={:[(1,0),(1,1)]:}andA-2B={:[(-1,1),(0,-1)]:}, then A is equal t...

    Text Solution

    |

  5. {:[(-6,5),(-7,6)]^(-1)=:}

    Text Solution

    |

  6. From the matrix equation AB=AC, we conclude B=C provided.

    Text Solution

    |

  7. If I3 is the identily matrix of order 3, then (I3)^(-1)=

    Text Solution

    |

  8. Let a ,b , c be real numbers. The following system of equations in x ,...

    Text Solution

    |

  9. If A and B are two matrices such that A+B and AB are both defind, then

    Text Solution

    |

  10. A and B are tow square matrices of same order and A' denotes the tran...

    Text Solution

    |

  11. STATEMENT-1: The lines a(1)x+b(1)y+c(1)=0a(2)x+b(2)y+c(2)=0,a(3)x+b(3)...

    Text Solution

    |

  12. The system of linear equations x+y+z=2,2x+y-z=3, 3x+2y+kz=4 has a uniq...

    Text Solution

    |

  13. If A and B ar square matrices of order 3 such that |A|=-1|B|=3, then |...

    Text Solution

    |

  14. If the points (x1,y1),(x2,y2)and(x3,y3) are collinear, then the rank o...

    Text Solution

    |

  15. Let A=[(1,-1,1),(2,1,-3),(1,1,1)] and 10 B=[(4,2,2),(-5,0,alpha),(1,-2...

    Text Solution

    |

  16. Let A=[(0,0,-1),(0,-1,0),(-1,0,0)] Then only correct statement about t...

    Text Solution

    |

  17. If {:A=[(1,2,2),(2,3,0),(0,1,2)]and adjA=[(6,-2,-6),(-4,2,x),(y,-1,-1)...

    Text Solution

    |

  18. If A is a square matrix such that A*(AdjA)=[{:(4,0,0),(0,4,0),(0,0,4):...

    Text Solution

    |

  19. If n is a natural number. Then {:[(2,-1),(3,-2)]^n:}, is

    Text Solution

    |

  20. Given x=cy+bz,y=az+cx and that a^(2) +b^(2) +c^(2) +2abc =1.

    Text Solution

    |