Question: If f(z) = x2 +2x+5 y+ i(y -5x +6), %3D which of the following is true 1) f'(2+4) = 6 - 51 2) f'(1+27)

If f(z) = x2 +2x+5 y+ i(y -5x +6), %3D which of

If f(z) = x2 +2x+5 y+ i(y -5x +6), %3D which of the following is true 1) f'(2+4) = 6 - 51 2) f'(1+27) = 4 5 i %3D 3) f'(5+4i) = 12 + 87 4) f'(-2+3 ) = -2 + 6 i

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