Question

If $Z_1$ and $Z_2$ are two complex numbers, then $Z_1-Z_2$ represents

• A. a complex number which is sum of $Z_1$ and additive inverse of $Z_2$
• B. a complex number which is difference of $Z_1$ and additive inverse of $Z_2$
• C. distance between $Z_1$ and $Z_2$
• D. None of the above

Answer 1

Answer: (A)

Since, difference of two complex numbers is also a complex number and $z_1-z_2$ can be written as $z_1+\left(-z_2\right)$, which is sum of $z_1$ and additive inverse of $z_2$.