Trigonometric Functions of Any Angle

I introduce how to evaluate trig functions without knowing the actual angle measures. With just enough information to determine what quadrant an angle is in and set up the reference triangle, we can find any trigonometric ratio.

[thehrchannel]

Dude! It's amazing how you nail this in 15 minutes while most professors take the whole hour to explain it to the students. If I ever see you when I register for class, I will not hesitate to take. Plus, you're like the kind of professor I wouldn't be afraid to ask questions.

[profrobbob]

Thank you for tuning into my channel and watching. I'm glad to hear that my teaching style made the breakthrough you needed. We all have different styles of teaching and i try to make mine similar to what worked for me when I was in school. Please share my channel with your friends and classmates:)...now BAM!...go get an "A" on that quiz Monday!!!

[haleyparker]

THANK YOU SO MUCH! I am taking College Trig online, and the modules consist of a powerpoint and video clips from Pearson. There's very little explanation, so when something doesn't click I get really stuck. This helped me make sense of things.

[TheSonic]

Dude, you are easy to understand with how fast you go through the problems!!! Thanks!

[profrobbob]

You are so very welcome. I'm glad you took the time to seek outside help and found my channel. I try to base my teaching style off of the styles I found the most helpful to me when I was in school. I look forward to helping you make Trig your new favorite subject:)
(my wife said to thank you for sharing your great music selections)

[soli_.]

Grade 9 Math absolutely sucks! I'm glad I saw your video. It really gave me a lot of insight on this topic.

[cassandra]

Love how enthusiastic you are. It makes my online class much easier and entertaining when I use your videos. Thanks man :)

[nicolette]

First of all THIS HELPED ME SO MUCH, thank you!!!! Secondly, thank you for completely erasing the board, instead of leaving bits of writing there like all other teachers seem to do, and thank you for having wonderful, legible handwriting.

[alfredohernandez]

+ProfRobBob you have no idea how useful these videos were to me. I have a final tomorrow and I've searched a while to find a video that makes he material as comprehensive and interesting as yours. Again, thank you. Keep up the good work!

[profrobbob]

That's a good idea.
I do have separate playlists on my channel now which follow the order in which the lessons are taught.
Thanks for watching and good luck with your online course!

[profrobbob]

How I am spending my Saturday afternoon.... BAM!!! Yes I am typing Closed Captions.

[SkiiBLuButterfly]

This video was extremely helpful! I've learned more in these 15 minutes than I have in my half semester of my *boring* pre-cal class. And the closed captions help SO MUCH!!! Thank you times a million-- already subbed :)

[profrobbob]

Thank you...Glad it was able to clear things up from your absence and I hope you will keep watching whenever you need extra help!

[hunter]

I can't describe how happy I am that I found this!
My math professor just moves too fast and this totally helped me actually understand the concepts...THANK YOU!

[sp-ohzz]

My finals for precalc are coming up and I've been watching your videos to study better. I'd just like to say that they are very helpful and you are such a wonderful teacher, thank you for uploading these videos! On that note, I was watching this video before going to sleep and right when my eyes were closing, I heard your voice go "Are you still awake?! Are you with me?!" That was the most perfect timing ever, it did wake me up lol once again, thank you so much!

[ritviksingh]

Thank God your here, my math teacher wasn't at school today, and my EOC is tommorow!


Someone get this man a Nobel Peace Prize.

[bhavna]

Hi, i am 40 years trying to understand trig to help my daughter in maths who is 13. It proved to be helpful. Thanks.

[profrobbob]

Your welcome. I am glad I could help...and you found my videos:)

[JamesSmith-jhco]

I'm in college at 35 and wasn't a very attentive high school student so I'm playing catch up and I struggle with the basics. You have made this subject very easy to understand in a short amount of time. Thank you.

[helpontheway]

What an incredible feeling it is to hear the explosion of a "BAM" coming from MY mouth as I'm studying for tomorrow's test. Thank you so much brother! So grateful for you. You've helped a confused student in south Florida really understand what he's doing. Keep it up!!! I'll look forward to you in my future classes:)