Imaginary Numbers: (Dividing) Rationalizing the Denominator (Example 3).avi

This video is a demonstration of dividing two imaginary numbers by multiplying by the conjugate of the denominator.

Category:

Education

Tags:

• Dividing
• Imaginary
• Numbers
• Example

[FerranteMath]

You're welcome :)

[theif519]

You've helped me a lot, but I have to ask, this question may be simpler than the others, but I suppose because it's different from this, I have problems with it. Can you help me solve the following equation

(4 / i) Should I multiply both by the imaginary number?

[FerranteMath]

@theif519 Yes, multiply by i/i Basically, you're multiplying by "1" since "i/i" equals one. When you multiply by 1, you're not changing the quantity of the original problem but you are changing the way it looks. You'll now get 4i/i^2 and i^2=-1. Your final answer will be -4i. Hope that makes sense!

[SecretPICKACHU]

Thanks a lot :)

[dougs7250]

Thanks a lot! This really helps.

[theif519]

@FerranteMath Surprisingly, it does. Thank you so much

[whatthephungtastic]

really helped, thank you!