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" Show that one value of "[[1+sin(pi)/(8...

" Show that one value of "[[1+sin(pi)/(8)+i cos(pi)/(8)],[1+sin(pi)/(8)-i cos(pi)/(8)]]^((8)/(3))" is "-1" ."

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" **4.Show that one value of "((1+sin(pi)/(8)+i cos(pi)/(8))/(1+sin(pi)/(8)-i cos(pi)/(8)))^((8)/(3))=-1

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