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Gurpreet kaur Asked a Question
September 6, 2020 7:18 pmpts 20 pts
QUESTIONOF THE NIGHT Q12) Let z =x+ iy, then which of the following function is analytic A) fz) = x - iy. B) flz)= e*(cosy isiny). C) f{z) = e(cosy - isiny). D) None of the above.
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  • Satpal singh Best Answer
    option C is correct see the attachment
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  • Anonymous User thankyou
    see attachments.....in 3rd option, since the four partial derivatives Us,Uy, Vx, Vy exists & are continuous everywhere and they satisfy CR equations, so the third function is analy...
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    • cropped8327354173507979005.jpg
    • cropped3505674243460697274.jpg
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    Satpal singh
    only C R equations not sufficient for analyticity
  • Anonymous User
    option c is correct
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  • Gurpreet kaur
    thanks
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