Home
Class 10
MATHS
If alpha and beta be the zeros of the qu...

If `alpha` and `beta` be the zeros of the quadratic polynomial `2x^2+5x+1` then calculate the value of `alpha+beta+alpha beta`?

Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER 10

    AGRAWAL PUBLICATION|Exercise EXERCISE|89 Videos

  • SAMPLE PAPER 12

    AGRAWAL PUBLICATION|Exercise EXERCISE|49 Videos

Similar Questions

Explore conceptually related problems

If alpha and beta be the zeros of the quadratic polynomial 2x^(2)+5x+1 , then calculate the value of alpha+beta+alphabeta ?

If alpha and beta are the zeroes of the quadratic polynomial f(x)=x^2-4x+3 then find the value of alpha^4beta^2+alpha^2beta^4

If alpha and beta are the zeros of the quadratic polynomial p(x)=4x^(2)-5x-1, find the value of alpha^(2)beta+alpha beta^(2)

If alpha and beta are the zeros of the quadratic polynomial x^(2)-7x+10 find the value of alpha^(3)+beta^(3)

If alpha and beta be the zeroes of the quadratic polynomial f(x)=x^2-7x-4 then alpha/beta+beta/alpha=

If alpha and beta are the zeros of the quadratic polynomial f(x)=x^(2)-x-4, find the value of (1)/(alpha)+(1)/(beta)-alpha beta

If alpha and beta are the zeros of the quadratic polynomial f(x)=x^(2)-5x+4 , find the value of (1)/(alpha)+(1)/(beta)-2 alpha beta

If alpha and beta be the zeroes of the quadratic polynomial p(x) = 2x^2 - kx + 7 since that alpha^2 + beta^2 - 1/2 alpha beta = (23)/(2) , find the value of k.

If alpha and beta are the zeros of the Quadratic Polynomial F(X) = 6x^2 + x − 2 , Find the Value of alpha/beta + beta/alpha

If alpha and beta are the zeros of the quadratic polynomial f(x)=5x^(2)-7x+1, find the value of (1)/(alpha)+(1)/(beta)

AGRAWAL PUBLICATION-SAMPLE PAPER 11-EXERCISE
  1. What is the positive real root of 64x^2-1= 0?

    Text Solution

    |

  2. The base radii of two cylinders are in the ratio 2 : 3 and their heigh...

    Text Solution

    |

  3. If alpha and beta be the zeros of the quadratic polynomial 2x^2+5x+1 t...

    Text Solution

    |

  4. What is middle value of a class interval which lies between true upper...

    Text Solution

    |

  5. An integer is chosen at random between 1 and 100 . Find the probabilit...

    Text Solution

    |

  6. In the figure.If ("OA")/("OD")=("OC")/("OB"), then which pair of ...

    Text Solution

    |

  7. Check if 0.2 is a root of the equatin x^2-0.4 = 0.

    Text Solution

    |

  8. If 6 times the 6^(th) term of the A.P is equal to 9 times the 9^(th) t...

    Text Solution

    |

  9. Find the soluton of the following pair of equation: x-3y = 2, 3x-y = 1...

    Text Solution

    |

  10. The chord of a circle of radius 8 cm subtends a right angle at its cen...

    Text Solution

    |

  11. Formula one Portugese Grand Prix technical team at the Algarve Interna...

    Text Solution

    |

  12. Google maps cartography team is working on improving the scalability q...

    Text Solution

    |

  13. Find the HCF and the LCM of 72 and 120, using prime factorisation meth...

    Text Solution

    |

  14. Write a pair of equations in variables x and y which is consistent wit...

    Text Solution

    |

  15. Write a pair of equations in variables x and y which is consistent wit...

    Text Solution

    |

  16. In an AP, if a = 1, a(n)= 20 and S(n) = 399, then n is equal to

    Text Solution

    |

  17. The verticles of an equilateral triangle ABC are (0, 0), (0, y) and (3...

    Text Solution

    |

  18. If costheta +sin theta= sqrt(2)cos theta, then prove that costheta-sin...

    Text Solution

    |

  19. In the figure, chord AB subtends an angle of 60°^(@) at the centre of ...

    Text Solution

    |

  20. If sin theta + cos theta = p and sec theta + "cosec"theta = q, then p...

    Text Solution

    |