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MATH / For complex numbers z, let f(z) = left beginarraycl z^2&text if ztext is not real, z+2 &text if ztext is real. endarray right.Find f(i)+f(1)+f(−1)+f(−i). · Discussion

Discussing For complex numbers z, let f(z) = left{ begin{array}{cl} z^{2}&text{ if }ztext{ is not real}, z+2 &text{ if }ztext{ is real}. end{array} right.Find f(i)+f(1)+f(−1)+f(−i). · MATH

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