Exact Values for Trigonometric Ratios

[@commenter4799]

Someone's upgraded their cinematographer skills in 7 years.

[@James-le8gd]

ofc i find this video after my trig exam

[@cassied9327]

I’m finding this two semesters after my trig class. I feel the pain. 😂

[@jamesspencer5180]

Very handy video, thank you!

[@SankalpaSatyal]

Cosine is complement function of sine

[@saud4696]

well explained topic, thank you!

[@karunasharma262]

Mindblowing trick

[@viviennewenig8673]

What a terrific teacher

[@cassied9327]

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

[@pookie8856]

What about t-hand-gent?

[@philomath6190]

what's the point of drawing those arrows?

[@chantedcolour4943]

Lord and savior eddie.

[@vtpmsv2163]

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

[@harryfoott1483]

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

[@zuhalim9979]

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

[@mani5788]

Why I can’t learn anything from this guy?

[@Arshiyahhhh]

Thank God, I'm not the only one

[@AsIaNbOY452]

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

[@jeffo8520]

It's sinAcosB+sinBcosA

[@divyanshigoel9405]

sin(A+B)=sinAcosB+cosAsinB sinA+sinB=2sin(A+B)/2*cos(A-B)/2