1.

Evaluate `((i^(180)+i^(178)+i^(176)+i^(174)+i^(172))/(i^(170)+i^(168)+i^(166)+i^(164)+i^(162)))`.

Answer» Correct Answer - -1
Given expression `=(i^(172)(i^(8)+i^(6)+i^(4)+i^(2)+1))/(i^(162)(i^(8)+i^(6)+i^(4)+i^(2)+1))=i^((172-162))=i^(10)=i^(8)xxi^(2) = -1`.


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