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hba
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Modulus of \[2(\cos \frac{ \pi }{ 3},iSin \frac{ \pi }{ 3 })\]
hba
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I suppose De-Moivres law Would help....
hba
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@ash2326
niksva
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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
ash2326
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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?
hba
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So the answer is 2 ?
ash2326
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Yes
hba
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Thanks.