Home
Class 11
MATHS
The value of p and q for whichp ,q are t...

The value of `p` and `q` for which`p ,q` are the roots of the equation `x^2+p x+q=0` are

Text Solution

AI Generated Solution

To find the values of \( p \) and \( q \) for which \( p \) and \( q \) are the roots of the quadratic equation \( x^2 + px + q = 0 \), we can use Vieta's formulas. According to Vieta's formulas, for a quadratic equation of the form \( ax^2 + bx + c = 0 \), the sum and product of the roots can be expressed as follows: 1. The sum of the roots \( r_1 + r_2 = -\frac{b}{a} \) 2. The product of the roots \( r_1 \cdot r_2 = \frac{c}{a} \) In our case, the equation is \( x^2 + px + q = 0 \), where \( a = 1 \), \( b = p \), and \( c = q \). ### Step 1: Write down the equations based on Vieta's formulas ...
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    RD SHARMA|Exercise Solved Examples And Exercises|280 Videos
  • RELATIONS

    RD SHARMA|Exercise Solved Examples And Exercises|118 Videos

Similar Questions

Explore conceptually related problems

The roots of the equation (q-r)x^(2)+(r-p)x+(p-q)=0

If 2,3 are the roots of the equation 2x^3+px^2-13x+q=0 then (p,q) is

If p and q are roots of the equation 2x^2-7x+3 then p^2+q^2=

P and Q are two points on the rectangular hyperbola xy = C^(2) such that the abscissa of P and Q are the roots of the equations x^(2) - 6x - 16 = 0 . Equation of the chord joining P and Q is

RD SHARMA-QUADRATIC EQUATIONS-Solved Examples And Exercises
  1. For the equation |x^2|+|x|-6=0 , the sum of the real roots is (a) 1 ...

    Text Solution

    |

  2. The equation of the smallest degree with real coefficients having 1+i ...

    Text Solution

    |

  3. The value of p and q for whichp ,q are the roots of the equation x^2+p...

    Text Solution

    |

  4. The number of solution of x^2+|x-1|=1 is (a) 0 (b) 1 (c) 2 (d)...

    Text Solution

    |

  5. If x is real and k=(x^2-x+1)/(x^2+x+1) , then k in [1//3,3] (b) k...

    Text Solution

    |

  6. The one root of the equation x^2+p x+12=0 is 4, while the equation x^2...

    Text Solution

    |

  7. If the equations x^2+2x+3lambda=0 and 2x^2+3x+5lambda=0 have a non-ze...

    Text Solution

    |

  8. Solve the quadratic equations by using the general expressions for t...

    Text Solution

    |

  9. Write the number of real roots of the equation (x-1)^2+(x+2)^2+(x-3)^2...

    Text Solution

    |

  10. Solve: x^2-(7-i)x+(18-i)=0

    Text Solution

    |

  11. If alpha,beta are roots of the equation x^2-p(x+1)-c=0, then write the...

    Text Solution

    |

  12. Write the roots of the equation (a-b)x^2+(b-c)x+(c-a)=0.

    Text Solution

    |

  13. The least value of k which makes the roots of the equation x^2+5x+k=0 ...

    Text Solution

    |

  14. If alpha,beta are the roots of the equation x^2+p x+q=0,t h e n-1/alph...

    Text Solution

    |

  15. Solve the equation 9x^2-12 x+20=0 by factorization method only.

    Text Solution

    |

  16. The set of all values of m for which both the roots of the equation x...

    Text Solution

    |

  17. Solve the following quadratic equations by factorization method: x^2-...

    Text Solution

    |

  18. Solve the equation 25 x^2-30 x+11=0 by using the general expression fo...

    Text Solution

    |

  19. Solve: 2x^2-(3+7i)x-(3-9i)=0

    Text Solution

    |

  20. The value of k for which the quadratic equation k x^2+1=k x+3x-11 x^2 ...

    Text Solution

    |