(5 points ) Q5: Show that |cos(z)} = (cos(x))* + (sinh y) a for all complex numbers z = x + iy, where x = Re(z) and y = Im(z).

匿名用户 最后更新于 2021-12-01 19:08 数学类Mathematics

(5 points ) Q5: Show that |cos(z)} = (cos(x))* + (sinh y) a for all complex numbers z = x + iy, where x = Re(z) and y = Im(z).

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