How to prove the cosine rule using a geometric argument.
Пікірлер: 28
@CamMathsTutor3 жыл бұрын
Really nice and simple, love it!🙂 Keep up the good work
@mrteiijr2 жыл бұрын
Your explanation is so easy to understand. Thank you very much for the video.
@254screen8 ай бұрын
Interesting mehn😮
@SeegalMasterPlayz3 ай бұрын
This was interesting to know about. Thanks for sharing the proof with us.
@masashibata88957 ай бұрын
The proof presupposes Pythagoras theorem which is a special case of the law of cosines, making it somewhat a circular argument. There is a proof without using Pythagoras theorem from more basic principles of Euclidean geometry.
@jennife._rrАй бұрын
Thank youu🌟❤️!
@SibuMakhunga3 ай бұрын
this was super helpful!
@eipimath Жыл бұрын
Thanks for sharing! I posted a short video on deriving the law of cosines, It should apply for all angles (acute, obtuse, reflex, negative). Hope to get your thoughts.
@theoremus8 ай бұрын
Nice proof, thank you.
@ap3xmath123 Жыл бұрын
Thanks for the proof... I never really found interest in the actually proof after I was thought when and where it was applied... thanks cheers mate
@MenLette Жыл бұрын
Hi I have a question, why do you subtract equation 1 and 2 together apart from trying to get rid of h^2. How does it make actual conceptual sense, what is it showing exactly?
@mybigbeak Жыл бұрын
if a = b and c = d then a - c = b - d because a and b are equal, and so are c and d
@rupom_16708 ай бұрын
Thanks alot i needed this
@deanambrose23992 жыл бұрын
Thanks You Alive My Problem
@nothin_2 жыл бұрын
The best. Thankyou!
@lwazisithole4974 Жыл бұрын
Thanks Sir 🙌💯
@dr.rahulgupta75733 жыл бұрын
Why you have not put h^2=b^2--x^2 in eqn 2? This directly gives the required result which you want .make steps simple.
@KapidhwajSonithB2 жыл бұрын
Bro, subtracting eq.2 from eq.1 is the same task what you are talking about...