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electronics and communication engineering networks analysis and synthesis
1. If operator 'a' = 1 ∠120° then (1 - a2) =
(A): 1 ∠ - 30°
(B): 1 ∠ - 60°
(C): 1 ∠ 30°
(D): 1 ∠60°
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By: guest on 02 Jun 2017 01.08 am
1 + a2 = - a = 1∠-60°.
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