Home
Class 12
MATHS
Let p and q be real numbers such that p ...

Let p and q be real numbers such that p `ne` 0 , `p^(3) ne ` q and `p^(3) ne - q.` if `alpha and beta` are non-zero complex numbers satisfying `alpha + beta = -p` and `alpha^(3) + beta^(3) = q, `
then a quadratic equation having `(alpha)/(beta ) and (beta)/(alpha)` as its roots is :

A

`(p^(3) + q) x^(2) - (p^(3) + 2q) x + (p^(3) + q) = 0`

B

`(p^(3) + q) x^(2) - (p^(3) - 2q) x + (p^(3) + q) = 0`

C

`(p^(3) - q) x^(2) - (p^(3) - 2q) x + (p^(3) - q) = 0`

D

`(p^(3) - q) x^(2) - (p^(3) + 2q) x + (p^(3) - q) = 0`

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • QUADRATIC EQUATIONS

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (LEVEL-II)|61 Videos
  • PROBABILITY

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTIONS (QUESTIONS FROM KARNATAKA CET & COMED )|11 Videos
  • REAL NUMBERS

    MODERN PUBLICATION|Exercise Multiple Choice Questions (Level-II)|8 Videos

Similar Questions

Explore conceptually related problems

Let p and q be real number such that p ne 0 , p^(3) ne q and p^(3) ne -q . If alpha and beta non- zero complex number satifying alpha+ beta= -p and alpha^(3) + beta^(3) =q then a quadratic equation having (alpha)/(beta) and (beta) /(alpha) as its roots is :

If alpha and beta are different complex numbers with |beta|=1 , then find |(beta -alpha)/(1-baralphabeta)|

Knowledge Check

  • If alpha ne beta and alpha^(2) = 5 alpha - 3, beta^(2) = 5 beta - 3 , then the equation having alpha//beta and beta/alpha as its roots, is :

    A
    `3x^(2) + 19x + 3 = 0 `
    B
    `3x^(2) - 19x + 3 = 0`
    C
    `3x^(2) - 19x - 3 = 0`
    D
    `x^(2) -16x + 1 = 0 `
  • If alpha, beta are the roots of the equation x^(2)+x+1=0 , then the equation whose roots are (alpha)/(beta) and (beta)/(alpha) is

    A
    `x^(2)+x+1=0`
    B
    `x^(2)-x+1=0`
    C
    `x^(2)-x-1=0`
    D
    `x^(2)+x-1=0`
  • Let alpha, beta be the roots of x^(2)+a x+1=0 . Then the equation whose roots are – (alpha+(1)/(beta)) and -(beta+(1)/(alpha))

    A
    `x^(2)=0`
    B
    `x^(2)+2 a x+4=0`
    C
    `x^(2)-2 a x+4=0`
    D
    `x^(2)-a x+1=0`
  • Similar Questions

    Explore conceptually related problems

    If alpha , beta , gamma are the roots of the equation x^(3) + 4x + 2 = 0 ,then alpha^(3) + beta^(3) + gamma^(3) =

    If alpha and beta are non real cube roots of unity then alpha beta+alpha^(5)+beta^(5)=

    If alpha and beta two different complex numbers with |beta|=1 , then |(beta-alpha)/(1-bar(alpha)beta)| is equal to

    If alpha, beta are the roots of a x^(2)+b x+c=0 the equation whose roots are alpha+(1)/(beta) and beta+(1)/(alpha) is

    If cos(alpha - beta) = 1 and cos(alpha + beta) = 1/e , then the number of ordered pairs (alpha,beta) such that alpha,beta in [-pi,pi] is :