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Mathematics 11 Online
OpenStudy (anonymous):

3i*4i

OpenStudy (kainui):

i is the square root of -1. So if you square the square root of something, you get the original number back.

OpenStudy (anonymous):

12i^2 = 12 (-1) = -12

OpenStudy (anonymous):

So, 3*4=12 and i*i=-1

OpenStudy (anonymous):

Your answer is -i. (sqrt(-1))^3*(sqrt(-1))^4=

OpenStudy (anonymous):

No... it's -12

OpenStudy (anonymous):

How?

OpenStudy (anonymous):

i = sq rt (-1)

OpenStudy (anonymous):

Their answer is i, 1, -1, or i.

OpenStudy (anonymous):

Google it..

OpenStudy (anonymous):

http://www.wolframalpha.com/input/?i=3i*4i

OpenStudy (anonymous):

I stand corrected.

OpenStudy (kainui):

\[3*4*(\sqrt{-1})^2\]

OpenStudy (anonymous):

Sorry, I mistyped something

OpenStudy (anonymous):

You were right bluefoot.

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