Introduction to Inverse Sine, Inverse Cosine, and Inverse Tangent

Introduction to the inverse functions of sine, cosine, and tangent

[otamanlvhs]

When I sit in class I feel so dumb because I don't understand what my teacher is explaining but every time I turn on your videos math instantly becomes so clear that I'm starting to enjoy doing math.Thank you for devoting your time.

[jav]

wow, I spent all day looking for a way to check with a calculator, thanks, you're a life saver.

[NachWolf]

This has really helped me. It is the day before my test and I was freaking out because I didnt feel ready. I feel more comfortable now. Thank you

[ruggjess]

Hi! Great video and explanations!! I've learned more here than others. Question though. In your example 1, shouldn't the quadrant -pi 3/2 be in quadrant IV not II ? You mention quadrant 2 and so I just want to be sure.
thanks for all your help!!

[TheTwivi]

It's great!!!! clear presentation, much better than my professor
Very helpful ;)

[abeerraad]

@8.45 you said that the Tan=opp/hypo agree??

[tymgrebenyuk]

5:40 - why is that in quadrant 4 and not 3?

[zackthewack]

Hi, I am very confused as when I type in arctan(5/15) in my calculator (Same TI-84 Plus C Silver Edition calculator as you use on screen), instead of getting 18.43 I get 0.4899573263.