1.

If operator ‘a’ = 1 ∠120°. Then (1 – a) is equal to ____________

A. is equal to ____________a) \(\sqrt{3}\)
B. \(\sqrt{3}\)∠-30°
C. \(\sqrt{3}\)∠30°
D. \(\sqrt{3}\)∠60°
Answer» C. \(\sqrt{3}\)∠30°


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