Maths Tutorial: Trigonometry SOH CAH TOA (trigonometric ratios)

SOH CAH TOA is used to remember the trigonometry ratios; sine = opposite over hypotenuse, cosine = adjacent over hypotenuse, tangent = opposite over adjacent. This helps you work out unknown side lengths or unknown angles in a right-angled triangle.
This video is a tutorial on how to apply this rule.

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[bazza]

is anyone watching this the night before a test

[blackholesun]

Here I am trying to teach myself how to do the homework they assigned me with no understanding of anything during quarantine :, ))

[cremenivea]

Took me 17 minutes to fully understand what my teacher taught for 1 hour that i didnt even understand. Nice. Thanks!

[zacharycox]

One month of constant lessons, study guides, and homework by a teacher who's been in collage for 4+ years

Or a 16 minute boi

[SuperGamezU]

lol I love how I learn more in 8 min than a month in class

[Galvanalex]

taught me more in less than 20 mins than the 2 weeks in class.

[EyeLean]

For those who may be confused how she got 8.18 for Sine, she used her calculator * twice. * First she entered the measure of the theta angle (43) and hit the SIN button, yielding 0.069. Then she multiplied that by 12, which in turn yields 8.183.

[artortega]

SOH, CAH, TOA =Some Old Hippie, Caught Another Hippie, Tripping On Acid.

[xTyler]

You just saved my ass on my exam. My math teacher can't even teach for

[JMESIX]

Holy God. Please replace my math teacher. I actually understand for once.

[Nethulih]

Anyone watching this just before going to the exam😭

[godzillagaming]

You’ve basically explained to me what I was supposed to learn over and entire in 16 mins. Hands down, the best teacher ever. Please teach me.

[further_maths]

@that dude It's because you have the brackets in the wrong place. You are asking your calculator to work out the sine of (43x12), as in the sine of 516.  Instead, it should be the sine of 43, multiplied by 12. So you are typing sin(43x12). Which is like asking sin(516). Which will give an incorrect answer of 0.40  The correct way to enter it into your calc is sin(43) x 12  which will give you 8.18.  Don't worry, this is a really common error. I should definitely have explained that better in the video! Hope that helps :-)

[SussyL.]

I'm not even going to lie here, this was better explained on this video than it was in class and it's really complex to understand but it was 1) peaceful, no shouting classes or disruptions which was good. 2) Gave me a boost to my GCSE's that are 6 weeks away and this helped so much. Thanks (I'm also failing at English so sorry if this was difficult to understand)

[neenaparikh]

OMG thank you so much you have no idea how much this helped me!! I've been failing in math for some time now and i really needed to bring my grade up but with this video, i finally aced my test!! You have no idea how thankful i am! My teacher even talked to me after class about my grade and i showed her this video! sure its long but it helps so much!! you are great at explaining things and i the examples you provide!! You have made our lives so much easier and you dont even know how thankful i am!! Thanks again (for like the 500th time lol)

[Lobel_]

learning this for the past two weeks, GOT THE WHOLE TOPIC IN LESS THAN 20 MIN!  

[Roofskills]

Very good stuff, and well explained! for many years as a carpenter I’ve applied stuff like this to finding lengths an angles in Roof Carpentry, knowing some of this stuff became a real game changer and what a journey has been!

[joannaryan]

I have watched a few of these vlogs from various tutors on trigonometry, this is the only one that has made it really clear and easy to understand ;my daughter the same ;it has finally clicked, thank you so much as she has a test on it tomorrow and you have explained it perfectly

[andrainyy]

This is honestly a life saver. With an exam tomorrow for math, this video helped me so much. Thanks!

[blagultfan]

you are a life saver.. saw plenty of video's that were over-complicating it and yours is a home-run! from the bottom of my heart THANK