Show that J² वर J² 2 JzJZ ১৯2 ye Deduce the following for a smooth complex - valued function h. a) h is harmonic if and only if sh= = 0. b.Jh is harmonic if and only if th is analytic. JZ ch is harmonic if and only if sh is conjugate -analytic. d. If h is harmonic, hen d linen combination of JZ 4th onder partial derivative of his any jmb dzm and Jmh? Jzm

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