Harder Trigonometric Equations
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- Опубліковано 20 гру 2022
- Exam Questions: www.1stclassmaths.com/_files/...
In this video I explain how to solve difficult trigonometric equations. This video is intended for those studying AQA's Level 2 Further Maths GCSE.
Further maths exam paper 1 tomorrow. Your videos have really helped me so much thank you 👌🐐
Best of luck!
I just want to let you know that you are a life saver. Even though your videos may not get many views, it is such a helpful tool your channel is. I started further maths in November and discovered your channel in January, since then it has helped me understand this course soo much. I really appreciate your time and effort into something, and the motivation, too. Even though your videos may not get many views, just know that people like me and the other few who do watch your videos greatly appreciate the time and effort you put in to help us succeed in our exams, thank you so much 1stclassmaths, the least I could do is subscribe and like all your videos. Please don't give up and carry on with your amazing content! It is even better than some of the UA-cam channels on here that have more than 500k+ subs! May god bless you for your hard work to help others! 😊🙏🙏❤❤
Thank you. Not many people study this course so there is not much good content for students. That’s why I made it the videos. 😀 Best of luck with the rest of the course!
@@1stClassMaths My teacher uploaded your predicted papers and that’s how I discovered your channel. Other channels teach but don’t show and you also cover complicated questions.
You should be proud of yourself.
You deserve a knighthood man. Thank you so much for providing this incredible teaching for free. It is very much appreciated!
I appreciate that! People have received them for less for sure (see Gavin Williamson)
Thx this series has really helped with my further maths revision
I am actually so screwed for tomorrow paper1 helpppp
fr, I hope this only come up in calc
your content is amazing and super useful thank you so so much. Paper 1 FM tmrw. I've used all your videos pretty
much to revise
Thank you so much! Best of luck.
so much love for this i hope i can pass this i have paper 1 tomorrow
Thanks for helping me understand further maths ✨️
4:45 could you not do DOTS and then get 3 brackets and do it that way?
For the first question and all the questions, is it necessary to take away the thing on the RHS from the LHS? Can't we divide the thing on the RHS by the expression in the LHS? By doing that I can only get half the answers as we don't have 2 separate expressions that = 0.
i felt alright before today, i knew i was well an track to pass it and hopefully get a semi-decent grade. ive done many past papers, sample papers and predicted papers and all went alright. one i hadnt done is the 2021 paper. im now freaking out becuase i was only able to do around 15 - 20 marks of it without checking the answer sheet for assistance. im really worried now, ive never done a mock but have done past papers. lets put it this way, if the papers like the 2021 paper, im screwed and definatly wont be passing. so im probably gonna get a 9 in maths but a fail in further maths :/ anyways good luck everyone for tmrw and hopefully i can scrape through 😭😂
Hello sir, I have a question. On the question at 6:32 would one of the solutions also be 45° if the negative solutions are -135° and --45° so -45° + 180 = 135° (which you demonstrated) but also would we not do -135° + 180 = 45° as well, as it would be in the range of 0° - 360°?
-135 is not one of the solutions I am afraid. tan(-135) = 1 rather than -1
12:27 How can I know if I need to add 48.6 to 180 or subtract it from 180, and how do I know if it is 180 or 360?
Hi. This is explain in the main video on solving trig equations here: ua-cam.com/video/_McuKeG9DQI/v-deo.htmlfeature=shared
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Hi Sir, my teachers taught me about some CAST graphs, is this actually on the spec?
It is just a tool that people use to help them but I don't think it is a good way to teach it so I don't bother. I think you gain a better understanding if you learn the graphs.
@@1stClassMaths Thank you I Agree
Will this be in Paper 1 or Paper 2?
Could be in either
at 12:11 , why do you subtract 48.6 from 180?
You want to watch the video on solving trig equations before doing this one. It explains why we do that in detail.
@@1stClassMaths thank you!! ur videos are lifesavers
You can divide the equation by cosx if you don't know how much it is
You should take care if dividing equations by cos(x) in case cos(x) = 0 as this might lose you some solutions to the equation.
@@1stClassMaths I know but you did it in one of the equation
Your original comment said you “can” but I assume you meant “can’t”.
You can do this if you are dividing sin(x) by cos(x) to achieve tan(x).
@@1stClassMaths yes that's what I'm trying to say and I didn't know that you can to achieve tan(x). Thanks 🙏😊
1:55 +1*
Oops!
exams in 5 hours
Hour and a bit 😭
is this for gcses
It is for further maths GCSE, not regular GCSE.
@@1stClassMaths oh ok
You really out here giving an unfair advantage with these videos