1.

The value of (z + 3) (z̅ + 3) is equivalent toA. |z + 3|3B. |z – 3|C. z2 + 3D. None of these

Answer»

A. |z + 3|3

Given (z + 3) (z̅ + 3) = (x + iy + 3) (x –iy + 3)

= (x + 3)2 – (iy)2

= (x + 3)2 + y2

= |x + 3 + iy|2

= |z + 3|2



Discussion

No Comment Found