Question

How do you simplify `i-(-9+2i)`?

Answer 1

9 - i

Explanation:

First step is to remove bracket.

hence : i + 9 - 2i

When adding/subtracting complex numbers . Add/Subtract the real parts together and similarly for imaginary parts.

Thus i +9 - 2i = 9 + i(1 - 2 ) = 9 - i