If , then is equal…

MATHEMATICS · Single correct · CBSE · Mathematics · Complex Numbers and Quadratic Equations · Complex Numbers and Quadratic Equations

Problem

If 0<arg⁡(z)<π0<\operatorname{arg}(z)<\pi, then arg⁡(z)−arg⁡(−z)\operatorname{arg}(z)-\operatorname{arg}(-z) is equal to (1) 00 (2) 2arg⁡(z)2\operatorname{arg}(z) (3) π\pi (4) −π-\pi

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