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(a) Find all points

where the function f(z)=(2x3+y37yx)+i(x32y3+5y+4x) where z=x+iy is differentiable, and compute the derivative at those points.

(b) Is the function in (a) above analytic at any point? Justify your answer clearly.

2) Use Cauchy's Integration Formulas to compute each of the following integrals:

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