Question

The value of $\frac{11 + 10i}{17}$if$\frac{11 - 10i}{17}$, is.

• A. $\frac{2 + 3i}{4i}$
• B. $|z - 4| < |z - 2|$
• C. ${Re}(z) > 0$
• D. ${Re}(z) < 0$

Answer 1

Answer: (A)

$\frac{2 + 3i}{4i}$

Answer 2

$\left( r + \frac{1}{r} \right)^{2}\cos^{2}\theta + \left( r - \frac{1}{r} \right)^{2}\sin^{2}\theta = 1$, then $r^{2} + \frac{1}{r^{2}} + 2\cos 2\theta = 1$

$\because$.