Exact Values for Trigonometric Ratios 

Someone's upgraded their cinematographer skills in 7 years.

ofc i find this video after my trig exam

Very handy video, thank you!

well explained topic, thank you!

Cosine is complement function of sine

Mindblowing trick

Oh man wish I discovered this video when I was in trig. Oh well better late than never 😂

What a terrific teacher

What about t-hand-gent?

Sir please give references for this it will be helpful for us

this is very very very helpful!! thanks!!!

Lord and savior eddie.

Why I can’t learn anything from this guy?

what's the point of drawing those arrows?

You must have written 90 degrees instead of 30 degrees on the first triangle

at the start of the video you were talking about sin(A + B) doesnt equal sinA + sin B then what does it equal then? is there a video on it because i cant seem to find it