Home
Class 12
MATHS
Let p, q be real numbers . If alpha is ...

Let p, q be real numbers . If `alpha` is the root of `x^(2)+3p^(2)x+5q^(2)=0, beta` is a root of `x^(2)+9p^(2)x+15q^(2)=0 and 0 lt alpha lt beta`, then the equation `x^(2)+6p^(2)x +10q^(2)=0` has a root `gamma` that always satisfies

A

`gamma =alpha//4+beta`

B

`beta lt gamma`

C

`gamma = alpha //2 +beta`

D

`alpha lt gamma lt beta`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2013

    WB JEE PREVIOUS YEAR PAPER|Exercise MULTIPLE CHOICE QUESTIONS|80 Videos
  • QUESTION PAPER 2015

    WB JEE PREVIOUS YEAR PAPER|Exercise MULTIPLE CHOICE QUESTIONS|80 Videos

Similar Questions

Explore conceptually related problems

Let p ,q be real numbers . If alpha" is a root of x^(2)+3p^(2)x+5q^(2)=0,beta" is a root of "x^(2)+9p^(2)+15q^(2)=0and0ltalphaltbeta" then the equation" x^(2)+6p^(2)+10q^(2)=0 has a root gamma that always satisfies -

Let p,q be real numbers. If alpha is the root of x^2+3p^2x+5q^2=0 , beta is a root of x^2+9p^2x+15q^2=0 and 0ltalphaltbeta , then the equation x^2+6p^2x+10q^2=0 has a root gamma that always satisfies.

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

If alpha,beta are the roots of x^2-px+1=0 and gamma is a root of x^2+px+1=0 , then (alpha+gamma)(beta+gamma) is

If alpha,beta are roots of x^2-3x+a=0 , a in R and alpha <1< beta then find the value of a.

IF p^3-q(3p-1)+q^2=0 , find the relation between the roots of the equation x^2+px+q=0 .

If alpha,beta are the roots x^(2)-px+1=0 and gamma "is a root of "x^(2)+px+1=0 ,then (alpha+gamma)(beta+gamma) is -

If p and q are the roots of the equation x^2+px+q =0, then

If alpha,beta are the roots of x^2+px+q =0 and also of x^(2n)+p^n x^n+q^n=0 and if alpha/beta,beta/alpha are root of x^n+1+(x+1)^n =0, then n is

IF alpha and beta be the roots of the equation x^2+px+q=0 show that alpha/beta is a root of the equation qx^2-(p^2-2q)x+q=0 .

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2014-MULTIPLE CHOICE QUESTIONS
  1. Let f(x)=2x^(2)+5x+1. If we write f(x) as f(x)=a(x+1)(x-2)+b(x-2) (...

    Text Solution

    |

  2. If alpha, beta are the roots of ax^(2)+bx+c=0 (a ne 0) and a+h, beta +...

    Text Solution

    |

  3. Let p, q be real numbers . If alpha is the root of x^(2)+3p^(2)x+5q^(...

    Text Solution

    |

  4. The equation of the common tangent with positive slope to the parabola...

    Text Solution

    |

  5. The point on the parabola y^(2)=64x which is nearest to the line 4x+3y...

    Text Solution

    |

  6. Let z(1),z(2) be two fixed complex numbers in the Argand plane an...

    Text Solution

    |

  7. The function f(x)=(tan{pi[x-(pi)/(2)]})/(2+[x]^(2)) , where [x] denote...

    Text Solution

    |

  8. The function f(x)=a sin|x| +be^(|x|) is differentiable at x = 0 when

    Text Solution

    |

  9. If the coefficient of x^(8) in (ax^(2)+(1)/(bx))^(13) is equal to th...

    Text Solution

    |

  10. If I= int(0)^(2) e^(x^(4)) (x-a) dx=0, then alpha lies in the interva...

    Text Solution

    |

  11. The solution of the differential equation (dy)/(dx)=e^(y+x)+e^(y-x) is

    Text Solution

    |

  12. Suppose that the equation f(x)=x^(2)+bx +c=0 has two distinct real ...

    Text Solution

    |

  13. The function f(x)=x^(2)+bx+c, where b and c real constants, describes

    Text Solution

    |

  14. Let n ge 2 bet an integer, A=((cos(2pi//n),sin(2pi//n),0),(-sin(2pi//n...

    Text Solution

    |

  15. Ram is visiting a friend. Ram knows that his friend has 2 children ...

    Text Solution

    |

  16. The value of the sum (""^(n)C(1))^(2)+(""^(n)C(2))^(2) +(""^(n)C(3))^(...

    Text Solution

    |

  17. The remainder obtained when 1!+2!+3!+…+11! is divided by 12 is

    Text Solution

    |

  18. Out of 7 consonants and 4 vowels, the number of words (not necessarily...

    Text Solution

    |

  19. Let S=(2)/(1)""^(n)C(0)+(2^(2))/(2)""^(n)C(1)+(2^(3))/(3)""^(n)C(2)+…+...

    Text Solution

    |

  20. Let RR be the set of all real numbers and f:[-1,1] to RR be defined by...

    Text Solution

    |