👑 Everything you Need to Pass your AS Pure Maths Exam! A* | AS Pure Maths Revision | Edexcel AQA & OCR - kzbin.info/www/bejne/i5quh3Wpna6CrJY If anyone would like to support the channel you can become a member here: kzbin.info/door/StPzCGyt5tlwdpDXffobxAjoin or buy me a coffee here: www.buymeacoffee.com/gcsemathstutor Thank you for all of your support! 😁🙏🏼 New Discord Link: discord.gg/nRMtgr5AWA 👑
@bastianjohnson66452 жыл бұрын
Hi I wanted to tell you there seems to be a mistake at 27:14 question as it wouldn't be possible for to get 4-5cos theta
@stannersindustries49852 жыл бұрын
I don't understand how these videos are not more popular! You are doing a true service for the good maths education with these videos. (Particularly A-Level, these are much better than the competition).
@apple61129 ай бұрын
12:09 you could also remove the 5 common from 5sin2theta + 5cos2theta to get 5(sin2theta+cos2theta) which is equivalent to 5
@immanuellaAyuk7 ай бұрын
that's the same thing i thought of
@phelelekhoza71774 ай бұрын
I came to the comments to find this exact comment 😭.
@oozyjoey88694 ай бұрын
This is what I did, came to the comments to see if anyone else tried this
@tejeshvararunkumar94112 жыл бұрын
I used his videos so much for my GCSEs and I am confident in saying he is one of the reasons to how I got an 8. I didn't he made A level videos and I have been struggling without his help till now. I am doing far better now thanks to you
@TheGCSEMathsTutor2 жыл бұрын
I’m so glad to hear I could help! Amazing news on your GCSE grade keep up the amazing work! I’m working on some more A-Level videos over the holidays! 😁🙏🏼
@aaronvernon109417 күн бұрын
Grade 8 is a rookie number
@jacobmcgrory28412 жыл бұрын
ive had enough
@hemragulyusuf4069 Жыл бұрын
Real
@AbdulHadi-ud8dj Жыл бұрын
bruh same
@liza.56 Жыл бұрын
Same
@josephabraham1848 Жыл бұрын
Real
@Ayzlxn Жыл бұрын
So real
@shakz72 жыл бұрын
Thanks my g, really helped with my A Level maths
@sebclaye93262 жыл бұрын
same here g appreciate it mush
@courtneylust Жыл бұрын
really? what grade did you get?
@shakz7 Жыл бұрын
@@courtneylust Icl I got excluded from my old sixth😭, I go to a colly now and im predicted A wbu
@lukesampson8181 Жыл бұрын
@@shakz7why’d u get excluded lmaooo
@shakz7 Жыл бұрын
@@lukesampson8181 Dw😂
@tanatswadebwe80212 жыл бұрын
You got me a A 89% at IGCSE math 💓💓
@tanirsethu56622 жыл бұрын
Thanks a lot man 🙏. I tried to learn this so many times and couldn't understand it but now you taught me the method my a level maths teachers could never teach. If it wasn't for you, I would be failing a level maths. God bless you
@lizbasiita3498 Жыл бұрын
Thank you so much! Just one thing though: Have you considered using a thinner pen/marker for your whiteboard? I think it would just make your videos all the more perfect!🥰
@unknown-wm5ls2 жыл бұрын
These videos are genuinely a life saver, thanks.
@Jetset_hd2 жыл бұрын
extremely helpful, thank you so much
@Bxbyjyyy11 ай бұрын
I passed my IGCSE math with an A coz of this guys. Teachers were just waffling. Now I'm back for A level and he still the reason. I LOVE YOU MR TUTOR!!!!!!!!!
@AbdulMalik-qs9fg Жыл бұрын
bro can you please make a playlist on AS topics for stats and mechanics? It would be extremely helpful
@marib5440 Жыл бұрын
frrr do you know any good playlists for that
@azureass1661 Жыл бұрын
@@marib5440TLmaths is pretty solid imo
@smashaj2955 Жыл бұрын
@@marib5440maths genie website is good
@AhmedNasser-w3p2 ай бұрын
did you find mech?
@katherinemb.63082 жыл бұрын
Oh my god this helped so much. Thank you thank you thank you. Really appreciate your work and channel.
@chillvibes17483 жыл бұрын
Hello sir at around 27:14 how can (5x-4) be written as (4-5x), do you rearrange to first get (-4+5x) and then multiply that by (-1) to get (4-5x)
@charliefowler27812 жыл бұрын
it's because he flipped the signs around earlier to make 10x^2+7x-12, so then he flipped the signs back around afterwards
@bastianjohnson66452 жыл бұрын
@@charliefowler2781 yes but that still gives you same factors but do you then after multiply by - 1
@potati4097 Жыл бұрын
27:21 why wouldn't it be (3+2x)(-4+5x) because you need negative 12, so why would the 4 be positive??
@sugawaraaa916711 ай бұрын
Because he multiplied by minus 1 before factorising you have to switch the numbers in the brackets to make it the same quadratic
@tanatswadebwe80212 жыл бұрын
I love this guy I swear 😭😭😭
@vaed165110 ай бұрын
video helped so much. I'm watching this in preparation for my further maths mock exaam and this has saved me.
@jacklordeyey8546 Жыл бұрын
22:10 I understand how you find 57.7 and 122.3 by doing the quadrant method but how do you find the other two values as aren’t the only two quadrants the a and in the cast diagram
@jamespinder8381 Жыл бұрын
exactly what i was thinking, theyre in the S and T quadrants
@gudforyou9103 Жыл бұрын
25:55 i did not understand why you changed one of the minus signs to plus. isnt it supposed to stay minus?
@sugawaraaa916711 ай бұрын
He multiplied by minus 1 to make it easier and then swapped the numbers in the brackets at the end to make it the same as before
@jamie77073 жыл бұрын
Thanks for this amazing video Sir! Is there any chance possible if you may go through the quadrant method used to solve trigonometric functions as that is another method used for solving trigonometric functions and equations sir. Thanks for producing these amazing helpful and straight to the point chapter videos 👍👍👍🔥🔥🔥
@gracegrimwood57232 жыл бұрын
are you going to do the statistics and mechanics?
@whizzriz8139 Жыл бұрын
Hey sir, can you do AS stats and mechanics as well?
@tombob6412 жыл бұрын
Why couldn’t you just factorise the 5sin^2 +5cos^2 >>> 5(sin^2+cos^2) >>>> 5(1) >>> 5, am I correct or?
@YashveerRamchurn-cs5xw Жыл бұрын
Yeah, that works too cus I also did that and got the correct answer
@boitumelopitso68254 ай бұрын
that’s what i did as well
@Amir-nv6cs7 ай бұрын
At 11:00, could u not have factorised the 5 out of the equation? So that it would become 5(sin^2theta+cos^2theta). Then that becomes 5(1). Which becomes 5?
@yopolis45232 жыл бұрын
I don,t understand the example where where we show the equation equals to 4-5 cos0. You changed the sign for the quadratics and when you found your 2 answers, you also changed the (5x-4) into (4-5x). The sign (-) follows the 4 not the 5 but you just swapped it. Can you please explain this part? I don’t understand it at all.
@yopolis45232 жыл бұрын
Also, I didn’t change the quadratics sign so i got (-5cos0 + 4) (2cos0 - 3)/ (3 + 2cos0). Do the 3 +2cos0 and the 3 - 2cos0 cancel out? Please let me know if you see this comment.
@kamikazechameleon37002 жыл бұрын
if you're talking about the quadratic at 28:32 its because the quadratic was originally negative and he made it positive so he had to change the output to expand out into the negative the quadratic instead of the positive
@jamespinder8381 Жыл бұрын
In the solving trig equations chapter, using the quadratic method wouldn't you only get the first two answers? Because 57 and 122 fall into the A and S quadrants, and the other two values fall into the T and C quadrants?
@SeoYejun-tf8dc Жыл бұрын
You are my life saver🎉
@antonytembo3120 Жыл бұрын
Would you still get the same answers if you use different graphs ?32:25 for example instead of using the tan graph you use either the cos or sin graph?
@maryammm859 Жыл бұрын
no, ud have to use the graph for that particular function, e.g. tan graph for solutions for tan x = a
@chocolate88187 ай бұрын
Lovely video! I finally understood this topic thanks to you sir.
@mohammedalharthy2789 Жыл бұрын
well done, thank you sir
@TheGCSEMathsTutor Жыл бұрын
You are very welcome!
@davidhill81632 жыл бұрын
Many thanks for breaking this down slowly and step by step
@jozimaps94202 жыл бұрын
You are incredible
@TheGCSEMathsTutor2 жыл бұрын
Thank you so much 😁🙏🏼
@FraserGibbs3 ай бұрын
Cheers bro, this video is an absolute life saver 💪
@alisonjalon13 Жыл бұрын
this was so useful, thank you!
@malulu.9118 Жыл бұрын
this is really helpful thank you so much
@ff_cobra_kai2 жыл бұрын
Can I ask ...in the first example can we just factor out 5 Then turn everything into 1?
@dionthomas29672 жыл бұрын
No because you are trying to show that it’s identical to 5 so you shouldn’t really change the right side.
@arzaadkhan5012 жыл бұрын
@@dionthomas2967 but your not bringing anything to the right side. its 5(coa^2+sin^2)
@Mariane_iiv3 ай бұрын
Thank you so much, your videos are very helpful Thank you for your time ❤
@mathsmeadow51063 жыл бұрын
Is there any possibility that you would go through A2 pure maths before our exam 2022?
@sanzusbbl984411 ай бұрын
Sir please do more Alevel vidoes these are saving me !!! u lift soo much stress off my head
@jeffjeffson5967 Жыл бұрын
27:05 Sir, what is happening in this section?
@TheGCSEMathsTutor Жыл бұрын
Factorising a negative quadratic! I have a video on that if you search the channel 😁🙏🏼
@jeffjeffson5967 Жыл бұрын
@@TheGCSEMathsTutor Thank you sir.
@numan4166 Жыл бұрын
For the 7sin squared = 5 question ( 3rd question) do we need to give the 4 x values because in the question for drawing the graph, it's asking from 0 to 360
@andymandy1909 Жыл бұрын
I think you do because all 4 x values that he found lie between the intervals of 0 - 360.
@Bxbyjyyy11 ай бұрын
Dear Sir At 4:19 minutes, on the graph of exact trig values you wrote that cos45 and sin45 equal to 1 over root 2. They're both actually equal to root 2 over 2 Sir. Thank you very much more, I'm understanding the concepts coz of this vid!😊
@sugawaraaa916711 ай бұрын
1 over root 2 is equivalent to root 2 over 2
@wethan95692 ай бұрын
For the trigonometric identities question asking about equating it to 5 for the final equation can’t you just substitute five out? Since sin squared theta + cos squared theta =1?
@kola74832 жыл бұрын
banga vid like usual chap
@TheGCSEMathsTutor2 жыл бұрын
Thank you! Glad to hear it 😁🙏🏼
@badoublenana Жыл бұрын
At 27:27 I had worked out the same way, but I don't get how (5x-4) becomes (4-5x).
@williambailey934311 ай бұрын
Neither do I. Any explanation?
@sugawaraaa916711 ай бұрын
@@williambailey9343because he multiplied the quadratic by minus 1 before factorising so you have to swap the numbers in the brackets at the end
@sugawaraaa916711 ай бұрын
@@williambailey9343he swapped 2x + 3 to 3 + 2x as well even though it doesn’t matter
@williambailey934311 ай бұрын
@@sugawaraaa9167 yeah thanks. I managed to understand it after some thinking. Just need to make one bracket negative as making both negative does nothing. If you make the other bracket negative it still cancels out.
@Washingmachine25611 ай бұрын
well i finally learnt how to factorise properly in this video ❤
@charliecampbell5598 Жыл бұрын
Thank you so much for this! The textbook uses the circle method but my teachers use this method - much simpler imo
@ImranAwan-n9s9 ай бұрын
How important is the unit circle for AQA A Level Maths?
@straymite7073 жыл бұрын
Thanks so much this is really helpful for revision!
@Remus7862 жыл бұрын
How can 5x-4 be written as 4-5x 27:20
@riotza75972 жыл бұрын
cause remember he made -10x^2, 10x^2 to make it easier to work with so at the end he reversed what he did originally
@sei70822 жыл бұрын
at 22:04 your method is very long and gives inaccurate values, on calculator go to MODE SETUP --> TABLE --> f(X) = sin(X) --> START? Type number on the left of X in the interval so that's 0 --> END? Type number on the right of X in the interval so that's 360 --> STEP? Type your value for X then the values will be shown in a table. you don't need a graphical calculator just something like the classwiz, saves time and is accurate
@JenniferOnyemaechi5 ай бұрын
I got confused in the second question part B toward the end where we have Sin^-1=√5\7 The answer isn't corresponding with mine How did you get it
@tasangerbakes Жыл бұрын
11:00 could u not just factor out the 5 and make what's inside the brackets equal to 1 then 5x 1 = 5 ?
@lemonadechilli1722 жыл бұрын
You saved my exam mate very helpful thank you a lot
@tinashemangumba11692 жыл бұрын
Thank you so much u really helped me
@FotsapEmmanuel Жыл бұрын
Sir please can we be solving GCE question More often??
@Henry-sp3ku2 жыл бұрын
top quality mate
@ippo50052 жыл бұрын
Thank you
@asmaa18532 жыл бұрын
Thank you 💖💖
@hi-pg9bp Жыл бұрын
Thanks
@MuhammedKhabbab7 ай бұрын
if sin^2θ + cos^2θ = 1 then 5sin^θ + 5cos^2θ = 5. isn't that the proof. both sides have been multiplied by 5
@dontclickonmyprofilepictur75617 ай бұрын
yh thats what i thought
@leotang32423 жыл бұрын
please do more pure maths video please!!!!
@ethanmather46511 ай бұрын
17:00
@Sofia-gk9sn3 жыл бұрын
Hi Sir do you think you could cover the quadrant method please?
@sassinemselabe14962 жыл бұрын
nice video, but please bring in some more difficult trig identities next time
@mistermusab805511 ай бұрын
23:13
@rissikesthiyagarajah2205 Жыл бұрын
Thx
@fire-wo5wzАй бұрын
ppl do anyone know smone who does igcse chem and physics
@Oath_Keeper19792 жыл бұрын
Never skip steps. It’s a bad habit to get into and loses marks in exams…
@roxc453 Жыл бұрын
I rlly need to remember this but I keep thinking the examiner can read my mind or something
@courtneylust Жыл бұрын
@@roxc453 lol same
@areefilyas88502 жыл бұрын
W video
@BarniDeDino2 жыл бұрын
Gosh this chapter is annoying, your explanation helped tho, thanks man
@Ja-od1mh10 ай бұрын
Where’s r cos alpha vid
@26Uncovered7 ай бұрын
I'm so cooked
@beamboy075 ай бұрын
Kms
@castor5580 Жыл бұрын
If this is a level maths me is whole alphabet 😂
@user-mx6hd7gg6k Жыл бұрын
Endless pain and suffering I am tired
@geezer10247 ай бұрын
tired
@BobBob-uv9fq2 жыл бұрын
3;30 mins in and no obviously
@nhlanhlafuzane35352 жыл бұрын
roasted
@Rayaann27 күн бұрын
Worst chapter in alevel maths
@Amir-nv6cs7 ай бұрын
At 11:00, could u not have factorised the 5 out of the equation? So that it would become 5(sin^2theta+cos^2theta). Then that becomes 5(1). Which becomes 5?
@Yamesy2 жыл бұрын
Thank you
@Amir-nv6cs7 ай бұрын
At 11:00, could u not have factorised the 5 out of the equation? So that it would become 5(sin^2theta+cos^2theta). Then that becomes 5(1). Which becomes 5?