Army Group X Practice Set 3

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Question : 58 of 70

Marks: +1, -0

(cos‌θ+i‌sin‌θ)4

(sin‌θ+i‌cos‌θ)5

is equal to

cos‌θ−i‌sin‌θ
cos‌9‌θ−i‌sin‌9‌θ
sin‌θ−i‌cos‌θ
sin‌9‌θ−i‌cos‌9‌θ

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