Sudarsan Meher Asked a Question
August 18, 2020 9:14 pmpts 30 pts
Explain last two steps. r and 6 are called polar co-ordinates oI Z. 3+2isin 0 is 1-2isin 0 Example Find real 0 such that ) Purely Real and (ii) Purely Imaginary Solution: 3+2i sin (3+2isin 0)(1+ 2isin 0) 1+4 sin? Let Z = 1-2isin etisine 1+ 4 sin 0 1+4sin 0 3-4 sin0 8sin 0 Z= (i) z is purely real Im(z) = 0 sin 0 0 0 nt i) z is purely imaginary Re (z) = 0 3 sin 0 == sin2 0 = nT Tt 3
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  • Satpal singh thankyou
    where r u feeling difficulty?
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  • Sudarsan Meher
    how it getting sin^2(theta) = 3/4
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    Satpal singh
    if a rational function is zero it means numerator part is zero.