Find real and imaginary parts of tan(z)

Question : Find real and imaginary parts of tan(z)Solution :Let z=x+iy be any complex numbers where x and y are real numbers. Since tan(z)=sin(z)/cos(z)Hence we first expand sin(z) and cos(z) as followssin(z)=sin(x+iy)Expanding this by formula sin(A+B) =sin(A) cos(B) +cos(A) sin(B)sin(z)=sin(x+iy)=sin(x)…

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