## anonymous 5 years ago what is the following expression equal _____ √ 62-2i^2 _____ A.)√60i B.)8i C.) 8 ____ ____ D.) √62 -√ 2i

1. anonymous

Please don't post multiple questions all at once. You won't be able to pay attention if two people are trying to help you, and it crowds out questions other people may have.

2. anonymous

That being said, is the original expression a)$$(\sqrt{62-2i})^2$$ b)$$\sqrt{62-2i^2}$$ c)None of the above.

3. anonymous

B

4. anonymous

$$i^2 = -1 \implies -2i^2 = -2(-1) = 2$$

5. anonymous

So what would you have under the radical?

6. anonymous

i think the answer is c

7. anonymous

Yes, because you have $$\sqrt{64}$$