Home
Class 11
MATHS
Find the real numbers x and y if (x-i...

Find the real numbers x and y if `(x-i y)(3+5i)` is the conjugate of `-6-24 i` .

A

` x = -2, y=2`

B

` x = -3, y=3`

C

` x = 3, y=-3`

D

` x = -4, y=1`

Text Solution

AI Generated Solution

To solve the problem, we need to find the real numbers \( x \) and \( y \) such that \( (x - iy)(3 + 5i) \) is the conjugate of \( -6 - 24i \). ### Step-by-step Solution: 1. **Understanding the Conjugate**: We know that the conjugate of a complex number \( z = a + bi \) is \( \bar{z} = a - bi \). Therefore, the conjugate of \( -6 - 24i \) is: \[ \bar{z} = -6 + 24i ...
Promotional Banner

Topper's Solved these Questions

  • BINOMIAL THEOREM

    CENGAGE ENGLISH|Exercise All Questions|365 Videos
  • CONIC SECTIONS

    CENGAGE ENGLISH|Exercise All Questions|1344 Videos

Similar Questions

Explore conceptually related problems

Find the real numbers x\ a n d\ y , if (x-i y)(3+5i) is the conjugate of -6-24 idot

Find the real numbers x and y if (x-yi) (3+5i) is the conjugate of -6 -24i

Find real number x and y if (x-iy)(4 + 7i) is the conjugate of 29-2i.

Find the numbers x and y if (x+3, y-6)=(5, 5) .

Find the real values of x\ a n d\ y ,\ if:(x+i y)(2-3i)=4+i

Find the real numbers x,y such that ( iy+ x)(3+2i) = 1+ i

Find the real values of xa n dy , if (3x-7)+2i y=-5y+(5+x)i

Find the real values of x\ a n d\ y ,\ if:(1+i)(x+i y)=2-5i

Find the real values of x\ a n d\ y ,\ if:(3x-2iy)(2+i)^2=10(1+i)

Find the real values of x and y for which (1+i)y^2+(6+i)=(2+i)x

CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
  1. Let z be a complex number satisfying the equation (z^3+3)^2=-16 , then...

    Text Solution

    |

  2. If f(x)=a x^2+b x+c ,g(x)=-a x^2+b x+c ,where ac!=0, then prove that f...

    Text Solution

    |

  3. Find the real numbers x and y if (x-i y)(3+5i) is the conjugate of ...

    Text Solution

    |

  4. If x is real, then x//(x^2-5x+9) lies between -1a n d-1//11 b. 1a n d-...

    Text Solution

    |

  5. Find the least positive integer n such that ((2i)/(1+i))^n is a positi...

    Text Solution

    |

  6. Set of all real value of a such that f(x)=((2a-1)x^2+2(a+1)x+(2a-1))/(...

    Text Solution

    |

  7. Find the real part of e^e^(itheta)

    Text Solution

    |

  8. If alpha, beta and gamma are the roots of x^3 - x^2-1 = 0, then value ...

    Text Solution

    |

  9. Prove that z=i^i, where i=sqrt-1, is purely real.

    Text Solution

    |

  10. If alpha,beta,gamma,delta are the roots of the equation x^4-K x^3+K x...

    Text Solution

    |

  11. In A B C ,A(z1),B(z2),a n dC(z3) are inscribed in the circle |z|=5. I...

    Text Solution

    |

  12. Suppose that f(x) is a quadratic expresson positive for all real xdot ...

    Text Solution

    |

  13. about to only mathematics

    Text Solution

    |

  14. Let f(x)=ax^2-bx+c^2, b != 0 and f(x) != 0 for all x ∈ R. Then (a) ...

    Text Solution

    |

  15. If n is n odd integer that is greater than or equal to 3 but not a mul...

    Text Solution

    |

  16. If a ,b in R ,a!=0 and the quadratic equation a x^2-b x+1=0 has imagi...

    Text Solution

    |

  17. Find the complex number omega satisfying the equation z^3=8i and lyi...

    Text Solution

    |

  18. If the expression [m x-1+(1//x)] is non-negative for all positive real...

    Text Solution

    |

  19. When the polynomial 5x^3+M x+N is divided by x^2+x+1, the remainder is...

    Text Solution

    |

  20. x1 and x2 are the roots of a x^2+b x+c=0 and x1x2<0. Roots of x1(x-x2)...

    Text Solution

    |