Proof of the Cosine Rule 

Eyyy wasiza mfana, syabonga ke 🇿🇦

I have understood very well...Thank you for the clear explanation

Concept is derived from the basic concept. Really so clear.

Thanks. it's great to have experts .

Thank you ❤ this is actually helpful

Hello ! Thank you very much for this ! May I ask that you do proof of Sine rule, please ? Thanks again.

This one is perfect 🌹 Thank you 😊

Well explained sir ❤

You are great. Clearly explained

Thank u so much ur video was so helpful

Nicely done

Thank you sir 😇

Helped a lot👌🏽!!

So well taught. 👍

Thank u so so so much , I have my exams starting tomorrow

Well explained sir

amazing explanation. Thanks.

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.

You're a hero

Thank you very much .❤️❤️❤️

Thanks for sharing

Man u should have done the obtuse angle one 😢

Thanks 👍🏻

Thanks sir ☺️

Just subscribed 😄😄

thank you for saving my life sir

Thank u soo much

Proof noted!

THANKY YOU

WAITTTT... this is just vector addition!