The Cosine Rule - GCSE Higher Maths

A video explaining how to use the cosine rule to find missing sides and missing angles. This is for the GCSE higher maths course.

Exam Question Booklets:📝

0:00 Introduction
0:24 Introducing the formula
0:52 Example 1 - finding a missing side
2:38 Example 2 - finding a missing side
3:52 Example 3 - finding a missing angle
6:36 Example 4 - finding a missing angle
7:41 How to know when to use the sine rule or the cosine rule

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[thatoneguy.]

I cannot thank you enough. Listening to this in class helped me so much with learning such a hard concept in year 11

[NampalaPcharity-fgdq]

I wish I could give you a big tight hug.
Thank you so much for teaching us these topics I really appreciate your May God Bless you and may you receive all your heart felt desires

[x.fa_]

just wanted to leave a huge thank you, I've been crying all day thinking i will never understand the exam material until i found this video

[GDr-ry]

You are such an AWSOME help, this year, I’m aiming sky-high for IGCSE extended maths. Your videos make concepts more and more easy for me to understand as someone who is a slow learner, I want to thank you for all the resources u provide like the exam style questions and answers, you are really making a huge impact and changing perceptions about Maths❤❤

[WaliullahAhmed-cznz]

i cant thank you enough i have moved from foundation to higher and im going yr11 i was having such a hard time understanding this and you just taught me in a matter of minutes

[mxiisty_alxynxx]

Yessss tyyy I have an exam tomorrow and I had no clue until I found this 😊😊🎉

[HaimBenAvrahm]

I love it's simplicity and clarity. Thank you.

[ramratan]

Thanks for making me understand a formula which was difficult for me to understand :)

[ReemAsif]

Thank you so much. You are indeed the best person on this earth and u deserve the whole worlds love

[RobloxianCOOLst]

Ey bru ngl I fr apciet allat wrk cuz I lrning prolly gttn to yr 11 cuz of ya Ty bro life saver fr 🙏

[TheOnlyZackshadyK]

thank you very very much, it helped more than enough:))

[MetehanErgene-of]

Thank you my brother my igc is soon and i forgot this formula

[ballllllder]

Thank you so much i've always lost marks in my tests when these questions show up

[moonknight]

W for explaining it so well thank you so much❤❤

[SashaPetrovna]

Excellent explanation, however can you please make videos that use these laws when given in the form of word problems so that we are familiarized with the language used . Many thanks.

[kinzabibi]

thank you, this video is really helpful!!

[MuneebMakes]

When I type both of the fractions at 5:44 and 7:00 into my calculator, it gives me totally different answers than to what's shown. Please could you offer some help as to why that could be because I am really stuck on that for the time being

[anaselkelani]

Can you please post a video on quadratic expressions i have a exam after tomorrow plz help

[Kandeling]

Thank you for explaining however I have one problem, when I type the exact same formula on the calculator, I get a whole different result and it's the same thing with all the other exercises I've done...

[dannaprecup]

just wondering how do i know when im supposed to use the sine rule, cosine rule or sin cos tan? because all questions are similar