If it’s under 90 make a acute angle of it 90 make a right angle if it’s over 90 make a obtuse angle
Answer:

Step-by-step explanation:
Complex numbers identity:
The complex numbers identity is:

Square of the sum:

In this question:





So

Yes they are equivalent. You get -3 when you try solving the actual equation.
The direction you are traveling to get back home is North