The answer to 1 is (E) All of the above. This is because a negative cannot be under a square root and it comes out as an i.
The answer to 2 is (B) a is real and b is imaginary. This is because anything that has an "i" attached to it is considered imaginary.
I think the word you're looking for is congruent. Congruent angles always have the same angles.
So what I think you do is that yu have to simplify or divide. Good luck! - from: a 7th grader
