How To Find The Reference Angle In Radians and Degrees - Trigonometry

This trigonometry video tutorial provides a basic introduction into reference angles. It explains how to find the reference angle in radians and degrees.

Trigonometry - Free Formula Sheet:

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Trigonometry - Basic Introduction:

The Unit Circle:

How To Remember the Unit Circle Fast:

Reference Angles:

The Six Trigonometric Functions:

How To Solve Right Triangles:

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Reciprocal Identities:

Quotient Identities:

Even and Odd Trigonometric Identities:

Pythagorean Identities:

The Pythagorean Theorem:

Trig Functions - Periodic Properties:

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The Exact Value of Trig Functions:

Special Right Triangles - 30 60 90:

Special Patterns - Pythagorean Theorem:

Cofunction Identities:

Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[hellod]

I haven’t been listening in my pre-cal class and this is going to be on the math test that I need to do in less than two hours so thank you!

[zanderdadios]

Video was made 2 years ago but still helping a homie to this day, I have my trigonometry exam today 😂

[jadenmoser]

bruh why can't my math teacher do this tho

[velveteencherrytart]

i have a trig test in 10 mins wish me luck

[adamc.]

Basically, the angle must be off the x axis and be between 0 and 90. I can't believe my teachers didn't even teach this

[Quandalius]

My brain has collapsed on itself like a super massive star turning into a black hole

[lisanguyen]

Thank you so very much for taking time explaining so carefully, you are awesome

[noorakhan]

this makes so much more sense than everybody elses video thank you so much!

[FitWithCalisthenics]

The entire video playlist is great! Organic Chem Tutor has some of the best math videos on YouTube.

[theseusswore]

dude. how do you make such easy to understand videos, its simply amazing

[arjonsantos]

I'm literally doing a quiz rn and this man just saved me😭

[DialaRhouli]

I swear i learn from this guy more than I learn from school lol

[viperasd]

This actually help me to understand the homework that I have thank you for this video

[worldsendfruitbasket]

i love this video ... i was really struggling to figure out how i was getting these trig equations wrong using the special triangles ... i wasn't using the reference angle!... i hope everyone confused about that Finds this video

[PheonixFarss]

something this simple my teacher can't explain

[tylerkey]

took my teacher an hour and a half to explain this same concept

[leenalcharfli]

thank i was so struggle in this part but i understand from you

[cathkris]

thank you for being clutch like always🙏🏾

[buddywagner]

Guys. (Angle in degrees) mod 90. If its in quad 2 or 4 then take that result and get the compliment from 90. ie, -240deg mod 90 = 30, its in quad 2, so reference is 60. Way faster and easier to do in your head.

[________]

I only watched till 1:27 and already know everything I need to know