Square Roots of Complex Numbers (2 of 2: Introductory example)

[abhishiktaganguly]

I'm in the 9th grade and I can still understand your lessons, COMPLETELY! Thanks a ton, sir.. :))

[print-console]

By watching this video for only 12 minutes I'm be able to understand the fundamental core of complex number even better rather than listening to the 1 hour math lecture in my college. Thank You Sir Eddie!

[vaibhavyadav]

Great teaching! Helped a lot.
Love from India

[rachitmehta]

You explain so well ! Thank you so much Sir

[sandorrclegane]

Really interesting! Cool to learn more about the complex and imaginary numbers, further than just "i=√(-1)"
I'll be watching the rest of the playlist!

[manuelpanganoron]

It's funny! The way to know if your students are paying attention is to intentionally make a subtle mistake.
😁

[jongraham]

You don't necessarily need x and y to be real... it only makes it convenient to use that definition for the quadratic roots. The other two roots also exist for the fourth degree equation, I reckon.

[rico_]

You can just solve the simultaneous equations by inspection though

[DaimeG]

10:34 following that logic √(-5) is not necessarily i*√(5), it could be -i*√(5) and then theres no mistake

[horrormovieschannel]

Please zoom in board is so far can't see

[divyatiwari]

how is root 5 multiplied by root 5 equal to 25?

[DjJohnnyTheripper]

why is no real solutions written on the board? i got lost there! :( .. is we are talking about being in complex numbering system why cant the X and y be in the comples numbering system isnt that arithmatically more correct? lets imagine that x and y are complex numbers.. i wonder what we get then!

[mishikookropiridze]

so do we say that sqrt(25) = + or - 5 (?) kinda lost here!