Home
Class 11
MATHS
Sum of real roots of the euation |{:(1,4...

Sum of real roots of the euation `|{:(1,4,20),(1,-2,5),(1,2x,5x^(2)):}|=0` is

A

`-1, -2`

B

`-1, 2`

C

`1, -2`

D

`1, 2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • DETERMINANTS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Exercise|92 Videos

  • CARTESIAN CO-ORDINATE SYSTEM

    OBJECTIVE RD SHARMA ENGLISH|Exercise Exercise|27 Videos

  • DISCRETE PROBABILITY DISTRIBUTIONS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Exercise|40 Videos

Similar Questions

Explore conceptually related problems

The solution set of the equation |{:(1,4,20),(1,-2,5),(1,2x,5x^(2)):}|=0 is

The sum of the real roots of the equation |{:(x, -6, -1), (2, -3x, x-3), (-3, 2x, x+2):}| = 0, is equal to

The sum of the real roots of the equation x^(5)-5x^(4)+9x^(3)-9x^(2)+5x-1=0 is

The number of real root of the equation e^(x-1)+x-2=0 , is

The number of real roots of the equation 5+|2^(x)-1|=2^(x)(2^(x)-2) is

The number of real roots of the equation sqrt(1+sqrt(5)x+5x^(2))+sqrt(1-sqrt(5)x+5x^(2))=4 is

Number of real roots of the equation 2^x+2^(x-1)+2^(x-2)=7^x+7^(x-1)+7^(x-2) is (A) 4 (B) 2 (C) 1 (D) 0

The number of real roots of the equation 2x^(4) + 5x^(2) + 3 = 0 , is

The number of irrational roots of the equation (4x)/(x^2+x+3)+(5x)/(x^2-5x+3)=-3/2 is (a) 4 b. 0 c. 1 d. 2

The number of irrational roots of the equation (4x)/(x^2+x+3)+(5x)/(x^2-5x+3)=-3/2 is a. 4 b. 0 c. 1 d. 2

OBJECTIVE RD SHARMA ENGLISH-DETERMINANTS-Chapter Test
  1. If x, y , z are in A.P., then the value of the det (A) is , where A ...

    Text Solution

    |

  2. The value of |(b +c,a,a),(b,c +a,b),(c,c,a +b)|, is

    Text Solution

    |

  3. If a ,\ b ,\ c are non-zero real numbers and if the system of equat...

    Text Solution

    |

  4. If a!=6,b,c satisfy|[a,2b,2c],[3,b,c],[4,a,b]|=0 ,then abc =

    Text Solution

    |

  5. The value of Delta = |(1^(2),2^(2),3^(2)),(2^(2),3^(2),4^(2)),(3^(2),4...

    Text Solution

    |

  6. Prove: |a a+b a+2b a+2b a a+b a+b a+2b a|=9(a+b)b^2

    Text Solution

    |

  7. If all the elements in a square matrix A of order 3 are equal to 1 or ...

    Text Solution

    |

  8. Sum of real roots of the euation |{:(1,4,20),(1,-2,5),(1,2x,5x^(2)):}|...

    Text Solution

    |

  9. If f(x)=|{:(sinx,cosx,tanx),(x^(3),x^(2),x),(2x,1,x):}|, then lim(xto0...

    Text Solution

    |

  10. If A, B and C are the angles of a triangle and |(1,1,1),(1 + sin A,1...

    Text Solution

    |

  11. If |(x,2,3),(2,3,x),(3,x,2)|=|(1,x,4),(x,4,1),(4,1,x)|=|(0,5,x),(5,x,0...

    Text Solution

    |

  12. Using properties of determinants, solve for x:|a+x a-x a-x a-x a+x a...

    Text Solution

    |

  13. If Delta(1) = |(7,x,2),(-5,x +1,3),(4,x,7)| and Delta(2) = |(x,2,7),(x...

    Text Solution

    |

  14. If Delta1=|{:(10,4,3),(17,7,4),(4,-5,7):}|,Delta2=|{:(4,x+5,3),(7,x+12...

    Text Solution

    |

  15. If |(a,a +d,a +2d),(a^(2),(a + d)^(2),(a + 2d)^(2)),(2a + 3d,2 (a +d),...

    Text Solution

    |

  16. If Delta(k) = |(k,1,5),(k^(2),2n +1,2n +1),(k^(3),3n^(2),3n +1)|, " th...

    Text Solution

    |

  17. If the system of equations bx + ay = c, cx + az = b, cy + bz = a h...

    Text Solution

    |

  18. If a,b,c are non-zeros, then the system of equations {:((alpha+a)x+a...

    Text Solution

    |

  19. If p^(th), q^(th),r^(th) terms an A.P are 1/a,1/b and 1/c respectively...

    Text Solution

    |

  20. If A = |(a,b,c),(x,y,z),(p,q,r)| and B = |(q,-b,y),(-p,a,-x),(r,-c,z)|...

    Text Solution

    |