Trigonometry in 30 minutes • A-Level Maths, Pure Year 2, Chapters 6 & 7 📚
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- เผยแพร่เมื่อ 7 ก.พ. 2025
- Link to Bicen Maths Award video: • The Bicen Maths Award ...
Use this as quick revision, to summarise a playlist, and/or to check that you are ready to tackle exam questions. (Remember you can change playback speed on TH-cam if you're in a rush!)
PDF available in the Google Drive here: drive.google.c...
In 28:24 isn't it meant to be 5 pi over 3? but then you do get a minus pi over 3 for the second solution
Yes! You are correct! Luckily it doesn't impact the rest of the question, but I am still going to pin your comment so people can see it :) Thank you!
Wouldn't that be outside of the range? I thought it should be negative 2pi over 3
@just_somebody99 It was supposed to be 5pi/3, and then when you subtract 2pi from that, you get -pi/3, so -pi/3 is still the correct answer!
@@BicenMaths oh alright, thank you for clearing it up!
@@BicenMaths I am sure that you were correct at the start. I also got 4/3 pi. If I am wrong, how are you meant to find more solutions in radians mode?
You are saving my A levels
I understood nothing from my teacher but now i understand trignometry perfectly thank you very much you literally saved me
I'm so pleased I could be of help!
I actually feel like a student to Bicen in his classes
Thank you for helping me get on with my a levels so far king
You are so welcome - thank you for the comment, let me know if there's anything else you need.
This is just amazing, videos like this help so much just watching this right before your exam as a quick walk through. Honestly if videos like this were in every chapter, this would be more than a life saver. Thanks for everything
Thank you! I will try my best to have them for every chapter :)
Love the videos! Would you be able to do stats and mechanics playlist for year 1 and year 2 just like this playlist?
Yes, they will be coming eventually too :)
Hey sir could u make some of these summary videos on stats and mechanics they would be really helpful really appreciate the help
They'll be coming, eventually :)
Brilliant! Do you have any recommendations for where to practice these sorts of questions (exam style) online?
Really I'd go straight to exam questions - if you go to the Google Drive linked on my channel page (in the description), you'll find a document of past paper questions organised by topic that will be useful for you!
These are really helpful, thank you so much
You're welcome, pleased to hear it! :)
I just completed this topic but i wanted to ask kf they often ask to do proofs with identities (Exercise 7F) in the exams because i assumed that they would just test modelling the most
Yes, they sometimes do ask these types of questions! They'll likely also do modelling too - trigonometry is a very big, very popular topic in the exams!
sir, quick question, with regarding the implies sign which looks like =>
with regarding this sign, i use it ALL the time like:
2x + 4 = 0
=> 2x = -4
=> x = -2
although its kind of tedious will this affect anything? Like will I lose a mark
Yes, that would be totally fine!
do you gave to do it in radians for the harmonic identites?
It will depend on the context of the question!
Thank you!!
What software do you use to write on a screen
I use an iPad with Apple Pencil, and the software is GoodNotes + some screen recording!
will you be able to do core pure before the summer exams?
I am hoping so, but this project has proved a lot bigger than I expected! That's the plan, though!
Sir how do I acces your D1 videos?
gotta be a member
Sorry for the delayed response - yes, these videos are available only to members. If you can't see the option to Join as a member, it is possible that you're signed in with a work/school account, or the memberships aren't available in your country. If you do want to join, please join directly via TH-cam on a browser (£22.99) - if you join on iOS/Android they charge you so much more (£29.99) for the exact same thing!