For any integer k, let ak cos (k pi 7) i sin(k pi 7), where i 1 The value of the expression is For any integer k, let ak cos (k pi 7) i sin(k pi 7), where i 1 The value of the expression is ...

For any integer k, let ak = cos (k pi/7)+i sin(k pi/7), where i= -1. The...

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For any integer k, let ak = cos (k pi/7)+i sin(k pi/7), where i= -1. The...

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For any integer k, let ak = cos (k pi/7)+i sin(k pi/7), where i=√ -1. The value of the expression is. For any integer k, let ak = cos (k pi/7)+i sin(k pi/7), where i=√ -1. The value of the expression is.

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