Home
Class 12
MATHS
If ( cos 2 alpha+ isin 2alpha)(cos 2 b...

If `( cos 2 alpha+ isin 2alpha)(cos 2 beta+ isin 2 beta)= cos theta+isin theta`, then find the value of `theta`.

Promotional Banner

Topper's Solved these Questions

  • COMPLEX NUMBERS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE -1 (D)|13 Videos
  • COMPLEX NUMBERS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise VSAQ|2 Videos
  • COMPLEX NUMBERS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE -1 (B)|37 Videos
  • CIRCLE

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE - 1(e)|25 Videos
  • DE MOIVRE'S THEOREM

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Long Answer Questions|6 Videos

Similar Questions

Explore conceptually related problems

If (cos 3alpha+isin3alpha)(cos 5beta+isin5beta)=cos theta+isintheta " then " theta is

If (1 + cos theta + isin theta) (1 + cos 2 theta + isin 2theta) = x + iy then y =

If (sinalpha+icosalpha)^4(cos2alpha-isin2alpha)^(-2)=costheta+isintheta," then "theta=

If sqrt(3)+i= r(cos theta+isin theta) , then find the value of theta in radian measure.

If p=cos2 alpha+isin2 alpha,q=cos2beta+isin2beta then sqrt(p//q)-sqrt(q//p)=

If a = cos2alpha+isin2alpha , b= cos2 beta + i sin2 beta, c=cos2 gamma +isin2 gamma then prove that sqrt(abc)+(1)/(sqrt(abc))=2cos (alpha + beta+ gamma)

If (1+costheta+isintheta)(1+cos2theta+isin2theta)=x+iy then y =

If p=cos2alpha+isin2alpha,q=cos2beta+isin2beta" then "sqrt(p//q)-sqrt(q//p)

If (1 + cos theta - isin theta) ( 1+ cos 2 theta + isin 2 theta) = x +iy then x^(2) + y^(2) =

VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-COMPLEX NUMBERS-EXERCISE -1 (C)
  1. If z(1)=-1 and z(2)=-i, then find Arg (z(1)z(2))

    Text Solution

    |

  2. If z(1)=-1,z(2)=i then find Arg ((z(1))/(z(2)))

    Text Solution

    |

  3. If ( cos 2 alpha+ isin 2alpha)(cos 2 beta+ isin 2 beta)= cos theta+i...

    Text Solution

    |

  4. If sqrt(3)+i= r(cos theta+isin theta), then find the value of theta in...

    Text Solution

    |

  5. If x+iy=(cosalpha+isinalpha)(cosbeta+isinbeta) then value of x^(2)+y^(...

    Text Solution

    |

  6. If (z(2))/(z(1))(z(1) ne 0) is an imaginary number, then find the valu...

    Text Solution

    |

  7. If (sqrt(3)+i)^(100)=2^(99)(a+ib). Then show that a^(2)+b^(2)=4

    Text Solution

    |

  8. If z=x+iy and |z|=1, find the locus of z

    Text Solution

    |

  9. If the amplitude of (z-1)"is" (pi)/(2), then find the locus of z.

    Text Solution

    |

  10. If the Arg barz(1) Arg z(1) "are" (pi)/(5) and (pi)/(3) respectively f...

    Text Solution

    |

  11. If z=(1+2i)/(1-(1-i)^2), t h e n\ "a r g"(z) equals 0 b. pi/2 c. pi d....

    Text Solution

    |

  12. Simplify the following complex numbers and find their modulus. =((2+...

    Text Solution

    |

  13. Simplify the following complex numbers and find their modulus. ((1+...

    Text Solution

    |

  14. If (1-i)(2-i)(3-i)....(1-ni)=x- iy then prove that 2.510..... (1+n)^(2...

    Text Solution

    |

  15. If the real part of (z+1)/(z+i) is 1, then find the locus of z.

    Text Solution

    |

  16. If |z-3+i|=4 determine the locus of z.

    Text Solution

    |

  17. If |z+ai|=|z-ai| then find the locus of z.

    Text Solution

    |

  18. If z=(x+iy) and if the point P in the Argand plane represent z, then d...

    Text Solution

    |

  19. If z=(x+iy) and if the point P in the Argand plane represent z, then d...

    Text Solution

    |

  20. If z=(x+iy) and if the point P in the Argarand plane represent z, then...

    Text Solution

    |