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Question

Engineering Mathematics Question on Complex number

If z1=−1+iz_1 = -1 + i and z2=2iz_2 = 2i, where i=−1i = \sqrt{-1}, then Arg(z1z2)\text{Arg}\left(\frac{z_1}{z_2}\right) is:

A

3π4\frac{3\pi}{4}

B

π4\frac{\pi}{4}

C

π2\frac{\pi}{2}

D

π3\frac{\pi}{3}

Answer

π4\frac{\pi}{4}

Explanation

Solution

The correct option is (B) :π4\frac{\pi}{4}