hba
  • hba
Question..........
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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hba
  • hba
Modulus of \[2(\cos \frac{ \pi }{ 3},iSin \frac{ \pi }{ 3 })\]
hba
  • hba
I suppose De-Moivres law Would help....
hba
  • hba
@ash2326

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anonymous
  • anonymous
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
ash2326
  • ash2326
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?
hba
  • hba
So the answer is 2 ?
ash2326
  • ash2326
Yes
hba
  • hba
Thanks.

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