Please, how to plot for this code?

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soe min aung
soe min aung 2021-1-25
回答： KSSV 2021-1-25
k = -2:0.1:2;
g = ((2*cos(2*k))-2)/(1i*k);
plot(k,g)

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KSSV
KSSV 2021-1-25
Ran in:
Read about element by element operations.
k = -2:0.1:2;
g = ((2*cos(2*k))-2)./(1i*k); % use ./
plot(k,abs(g))
hold on
plot(k,real(g))
plot(k,imag(g))
legend('abs','real','imaginary')

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