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hba Group Title

Question..........

  • one year ago
  • one year ago

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  1. hba Group Title
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    Modulus of \[2(\cos \frac{ \pi }{ 3},iSin \frac{ \pi }{ 3 })\]

    • one year ago
  2. hba Group Title
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    I suppose De-Moivres law Would help....

    • one year ago
  3. hba Group Title
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    @ash2326

    • one year ago
  4. niksva Group Title
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    express above in the form of complex number , that is, z = 2cos(pi/3) + i 2sin(pi/3) then take modulus of this u will get the required answer

    • one year ago
  5. ash2326 Group Title
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    Modulus of \[a+ib \ is \sqrt{a^2+b^2}\] Use the same thing here, in fact modulus of \[\cos \theta+i\sin \theta =1\] regardless of theta.Can you do it now?

    • one year ago
  6. hba Group Title
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    So the answer is 2 ?

    • one year ago
  7. ash2326 Group Title
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    Yes

    • one year ago
  8. hba Group Title
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    Thanks.

    • one year ago
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