Busy. Please wait.
or

Forgot Password?

Don't have an account?  Sign up
or

taken

why

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size     Small Size show me how

# complex numbers

### solving equations with complex numbers

QuestionAnswer
the letter used to denote a complex number i
i^2 = -1
The square root of -64 8i
The square root of -1 i
The square root of -20 2i x the square root of 5
(4+2i) + (6+3i) 10+5i
(4+2i)(6+3i) Use the FOIL method to multiply: 24+24i+6i^2=24+24i-6, then simplify: =18+24i
7 multiplied by the square root of -28 break down the square root of -28 to: the square root of -1 times the square root of 4, times the square root of 7. then simplify and solve: 7 times i, times 2, times the square root of 7 = 14i times the square root of 7
square root of -56 divided by the square root of -7 square root of 8, which is broken down to: the square root of 4 times the square root of 2, then simplified to: 2 times the square root of 2
4i multiplied by 3i 12i^2, simplified to: 12(-1), then simplified to -12
Created by: lnelson25