College Algebra - Lecture 5 - More numbers and Geometry

[doughauf]

How can one simplify this equation

x = Sqr (Number) / Sqr (Number Feet/seconds ^ 2)  its the feet per seconds squared that I can not seem to find out. It was a problem to see how fast a building will collapse.

[oramrj]

This teacher is really outstanding he understands how to make it easier.

[ZachariahLogan]

ok, But with an imaginary number, that says, we can allow contradictions with other number systems, are me now allowed to do i/0 ?

[pishdad]

Gosh, this guy's an excellent teacher!!! Wish my college teaches were as good. I had some real, real, bad ones!!! Bad teachers really suck. They do more damage to the field than people realize!!! People think just because so & so get's A's & big degree he's qualified to teach- NO!!! He sucks!!! Watch out. He may have gotten A's & now professor but he may run more people away from the field than other teachers w/ lesser qualifications!!!! But this teacher is excellent.

[spott09]

@Dalianforever what the hell does that mean ?!!!!!!!!!

[pishdad]

@spott09 It means you're the sq root of neg. 1. You're imaginary man!!! You don't exist!!!

[joeols90]

Nice. But i hoped it would be more about the complex numbers. Polar-form and Euler...

[carteri246]

this has been extremely helpful for review. keep up the good work.

[Sparklillian]

This is a great video. I wish that my math teacher would teach like you. He makes everything so confusing by teaching us and showing his way of doing it, instead of the lesson itself. Sometimes, he would also make the lesson so confusing that more than half of the class couldn't understand him. Half of my classmates are failing math because of him, and we've already learned this things last year!

[Chutneybhai]

wow im in9th grade and i understand this! exactly why geometry sucks and algebra rules!

[pishdad]

@Chutneybhai You're suspended until further notice!!! And you better not be late to class when you return!!!

[KiraYamato636]

@Dalianforever lol

[jongbray]

22/7 is a rough approximation of pi.  It can be used if you can't remember what pi is and your calculator doesn't have a pi button.

[EvilNivL]

a pi?

[polos505]

This is basic algebra. I'm definitely not going to take this class.

[MathMikie]

why it is sometimes good to the education system where i live leaves gaps in studying algebra no complex numbers for a start and later on they just creep into maths and you havent been taught how to deal with them

[FCCJStudent1]

@polos505 Is Algebra 2 a lot harder than Algebra 1? Or is it pretty much the same thing. I know that I may sound stupid.

[polos505]

@FCCJStudent1

It's more challenging than algebra I. Tell you what ? if you did well in Algebra I, you will easily succeed in Algebra II.

[pishdad]

@polos505 Wait 'til you all find out it's all the same stuff!! He, he, he, he!! That's if you ever get that far!!

[pishdad]

@FCCJStudent1 Yep! That's right. Cause 2's bigger than one. You have to remember twice as much- 2 instead of 1.

[autorancho]

i liked that Chinese stuff

[Martin060480]

It's just unbelivable how easy you make these things to sound. I'm going to go back to university education soon and I really appreciate your work. English it's not my native language (it's Polish btw) but I live in the UK and I needed refresh of some basics in English. Why the other tutors don't teach like that? I also watching your College Calculus. Great Job Professor. Keep up good work.

P.S. Complex number are not so complex anymore :)