Basic trigonometry | Basic trigonometry | Trigonometry | Khan Academy




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Video duration: 9:17
Introduction to trigonometry

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Trigonometry on Khan Academy: Big, fancy word, right? Don’t be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry (“trig” as…

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41 thoughts on “Basic trigonometry | Basic trigonometry | Trigonometry | Khan Academy

    Danish Rehman

    (November 8, 2019 - 6:21 pm)

    Some people have,
    Curly brown hair,
    Through proper brushing.

    Hope this helps you out
    Note: P is perpendicular which is the same as opposite. B is the base or adjacent side

    Snowflake

    (November 8, 2019 - 6:21 pm)

    Who else is here just because the are bored in class and wants something more exciting?

    Pradip Yadav

    (November 8, 2019 - 6:21 pm)

    Hinde me padya

    Zhiyue YANG

    (November 8, 2019 - 6:21 pm)

    What if x was the right angle? Then does the hypotenuse change to another one, since it would then be the opposite?

    Ghosty

    (November 8, 2019 - 6:21 pm)

    Wow

    Ophiuchus123456789

    (November 8, 2019 - 6:21 pm)

    I love the way he always slowly repeats the occasional word.

    azuur asmr

    (November 8, 2019 - 6:21 pm)

    22 and going into college and I'm still reviewing this stuff

    jaju shah

    (November 8, 2019 - 6:21 pm)

    No one here but always finding the simplest way of beating your failure! Khan academy always good and preaching most simply ever on youtube! Hats off to ur gud work!😁😁😁it always helo me being a brown kid…

    Lambinroz Rozario

    (November 8, 2019 - 6:21 pm)

    What he did in 9 minutes, my teacher failed to do in 3 months

    Dipp0x

    (November 8, 2019 - 6:21 pm)

    Math test tomorrow wish me luck

    em luu

    (November 8, 2019 - 6:21 pm)

    Who else is just wanting to be top for maths so they could get something like a pc?

    Saad gamer

    (November 8, 2019 - 6:21 pm)

    we can also learn sin cos tan by
    sin – some people have
    cos – curly black hair
    tan – through proper hairbrush

    Katie Jones

    (November 8, 2019 - 6:21 pm)

    Shoutout to my brain for forgetting basic trig the night before the SAT

    welette .

    (November 8, 2019 - 6:21 pm)

    going over this again before school starts

    Dan Hughes

    (November 8, 2019 - 6:21 pm)

    667

    Beybrain78

    (November 8, 2019 - 6:21 pm)

    This is called the Art of le Illuminati my friends.

    IPSoft Creations

    (November 8, 2019 - 6:21 pm)

    compare this vid with the vid he made 12 yrs ago : https://www.youtube.com/watch?v=F21S9Wpi0y8

    james Micallef

    (November 8, 2019 - 6:21 pm)

    How do I rewrite this to get the same answer without using the TAN and PI() "45*TAN(45*PI()/180)" I tried this but it only kinda works as its missing the TAN "=45*(45*3.2/180) Thanks

    kanna the ruler

    (November 8, 2019 - 6:21 pm)

    Tuuu

    Cereal Killer

    (November 8, 2019 - 6:21 pm)

    This is why I donate $10 a month. It’s worth it. How much do you appreciate Khan Academy?
    👇🏻

    Aditya Mohapatra

    (November 8, 2019 - 6:21 pm)

    It must have been hard for you to speak and draw while also changing colors. Good job

    Alex Santos

    (November 8, 2019 - 6:21 pm)

    who else is here for self indulgence

    #thE CommentatoR

    (November 8, 2019 - 6:21 pm)

    thanks

    Hercules

    (November 8, 2019 - 6:21 pm)

    Thx to this video I learned about it in 9 minutes when i couldnt in the week that my teacher was explaing this.

    Now im prepared for my exams tommorow

    Srikavya Balu

    (November 8, 2019 - 6:21 pm)

    Who's here because they were curious 'bout trig

    Moviz Khalid

    (November 8, 2019 - 6:21 pm)

    Legend has it people still Find this 8 year old video more informative than their professor

    miss squish

    (November 8, 2019 - 6:21 pm)

    everyone's here bc of their schoolwork while i'm just like "hi im only in seventh grade and im taking the SAT in 7 days ahahaha"

    Toshio

    (November 8, 2019 - 6:21 pm)

    The Trigonometry class I'm taking starts in two weeks I plan to watch all your videos on the subject Khan Academy I learned a lot from this one 9min video and I want to learn more!

    MoonShark 21

    (November 8, 2019 - 6:21 pm)

    This helped me soooo much!! Thank you!!

    Kassie Winstead

    (November 8, 2019 - 6:21 pm)

    Where did u get 5 and 4 from

    Senuth Dawundage

    (November 8, 2019 - 6:21 pm)

    Thank you sooo much 🙏

    Gabby Kelly Patterson

    (November 8, 2019 - 6:21 pm)

    khan academy has been a good help to me…………thanks guys……..and I really enjoy the app

    Alex

    (November 8, 2019 - 6:21 pm)

    I hope this is the only thing in Trigo.

    REK LESS 187

    (November 8, 2019 - 6:21 pm)

    When I was learning how to get the circumference of a circle i was told to enter in the diameter and push the pie button on my calculator weeks later I ask what is pie how did it come to be?
    His response was. You were shown that on the calculator this is maths not history.
    good news I passed year 10 maths

    Chunky Chanka

    (November 8, 2019 - 6:21 pm)

    Anyone here cause there math teacher left🗿

    AirForceDave

    (November 8, 2019 - 6:21 pm)

    best instruction on this subject i have found. well done, and THANK YOU!~! great explanation and glad you did the big picture overview before diving in.

    akkireddy jagadeesh

    (November 8, 2019 - 6:21 pm)

    Very good useful video

    Angel Robledo

    (November 8, 2019 - 6:21 pm)

    I wish I was gifted.

    Debasish Ghosh

    (November 8, 2019 - 6:21 pm)

    Who else is here before the beginning of class 10 and will be here before board exams.

    Willis TBG

    (November 8, 2019 - 6:21 pm)

    Much Love man you helped me a lot bro😴🤜🏾

    Helen Yao

    (November 8, 2019 - 6:21 pm)

    I’m like failing geometry lord help me

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