Every Exam question on A level Functions (2017-2022) | ExamSolutions

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In this video, we'll go through all the Edexcel Exam questions on Functions from 2017-2022. The focus is on:
Domain
Range
Composite functions
Inverse functions
How to convert improper algebraic fractions into mixed algebraic fractions AT
• How to convert imprope...
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[@stephencharles6932]

For question range at 18:00 I prefer to put infinity (x can get this large in domain) in the denominator to get zero - as the denominator gets super huge to tend towards zero.

[@AceOfHearts001]

Great vid. The thing is tho... they bring in questions that really require wider knowledge outside spec, i mean... to find that range of g, you really need to know how to sketch that function, but its not officially taught in the textbook or is part of the spec.

[@ExamSolutions_Maths]

You're spot on, sketching these rational functions are really important to find the range. We also feel that this should be made clearer in the specification.

[@pigeonlove]

If that is true, it should be reported to the board. There is supposed to be a team of people competent enough to set the appropriate questions.

[@AceOfHearts001]

@@pigeonlove Yeh, but it doesnt end here... list goes on and on in the new spec... eg. They like to give quadratic modelling questions where you have to find a quadratic... this can recquire more specialist knowledge that is not covered the way it should be in the section of Quadratic modelling of the Year 1 book. Its Pearsons idea of a "Synoptic" paper...

[@fatmabatmaz2]

And it's 1 mark 😂

[@AceOfHearts001]

@@fatmabatmaz2 exactly

[@user-bd2pk5de9c]

Hi Sir, the video was great for practice so thank you . At 4:22 , would this method of finding the assymptote work for every reciprocal graph? Or does it depend on some conditions being met ?

[@Masowe.]

cheers

[@user-su6js9po4l]

havent even watched the video yet but thank you for this

[@MariamAlaa-kg7kq]

Great video, would you please create a series of these a level topics before the exam Greatly appreciated.😊

[@ExamSolutions_Maths]

with time we'll have everything. We're looking to grow the team so we can have more resources for you.

[@peterhunt1968]

This might seem like a slightly obtuse question but how do you make your videos with the exam paper and writing as you go along and recording the sound all simultaneously. Is there a particular program you use? Thanks and apologies if the question seems really dumb

[@ayo123]

44:50 why does the denominator = 0? Shouldn't anything that makes the denominator = 0 be undefined? And undefined doesn't equal 0

[@n30418]

For question one b, if x is greater than or equal to 5 shouldn't the range also be greater than or equal to 5?

[@ayo123]

at 28:00 isnt it supposed to be one to many for g(x)?

[@ayo123]

i thought many to one could have inverses

[@ayo123]

bro im confused h(x) is also a many to one since its a quadratic

[@ExamSolutions_Maths]

No g(x)is a many-to-one function. The first term 'many' we use to describe the y values, the second term 'one' we use to describe the x values
th-cam.com/video/esAf4gWDJNY/w-d-xo.html

[@ayo123]

​@@ExamSolutions_Maths thanks

[@ayo123]

@@ExamSolutions_Maths got a A* for maths thanks

[@tigerlilybaldwin4019]

is this edexcel ?

[@nkyxd5698]

Hello sir, may i ask for the pdf of the materials in this vid??? 😅😅 Greatly appreciated if sir is willing to provide the materials 😊😊

[@ExamSolutions_Maths]

Sure send us an email at [e-mail]

[@nkyxd5698]

@@ExamSolutions_Maths thx dude 🙏🙏