I thought this was X2 = 1.50... not 1.05. I might be wrong but if you visualise the staircase you go up from 1 to the function and across the x=y, its bigger than 1.05.

Reply 44

George Gande

For the question where it said solve for f(x) ALGEBRAICALLY, did you have to show how you found the solutions using the quadratic formula? Because I rushed and just put the equation into my calculator to get the solutions (although I got the answer right).

Also does anyone think there's a chance of an a* being above 80%?

(edited 10 months ago)

Reply 45

adamthe6

Original post by Bookworm524

Question 8 doesn't look right. It gives part b) k=2/3 or 20, but as the series is converging, k would have to be less than 1, therefore is 2/3 not 20

k is not the common ratio, r is. to work out r you had to plug k into the geo sequence, if you plugged in 2/3 you'd get a common ratio that isnt convergent but if you plug in 20 you get a convergent one, pretty sure r was -3/4

Reply 46

fluffydog1237

I think i got a solid 60 marks on this exam could this be an A

Reply 47

acrifasi

for the differentiation from first principles i proved it another way but idk if it will give me full marks. Basically i got to a point sinx(cosh-1/h) +sinhcosx. Then I used small angle formula to get sinx(-1/2h^2/h) +hcosx/h. so my final line was sinx(-1/2h) + cosx and as h tends to 0 dy/dx = cosx.

Reply 48

username6042973

Original post by fluffydog1237

I think i got a solid 60 marks on this exam could this be an A

i think yes, because last few years grade boundaries have been stuck at around 57% so 60% is reasonable

Reply 49

Askingissuccess

Original post by mathsstudent222

100% for me
What a paper.

Original post by Loztta

Question 9 was “one to many” so I’m disagree with some of those answers

Its a function...functioms r all one to one or many to one by default, no?

Reply 50

yupyupp

question if you set an even number as 2n and an odd number being 2n+1 youd lose marks right? or no

Reply 51

AnthonyM2312

Original post by yupyupp

question if you set an even number as 2n and an odd number being 2n+1 youd lose marks right? or no

Um when I did it I said when n is odd :let n =2k+1

When n is even : let n = 2p

Also does anyone remember what q5 part A was like the acc question thanks

Reply 52

username6042973

Original post by AnthonyM2312

Um when I did it I said when n is odd :let n =2k+1

When n is even : let n = 2p

Also does anyone remember what q5 part A was like the acc question thanks

guys for the proof one all i did was expand it out,will i get any marks

Reply 53

22gz

According to those marks if the unofficial mark scheme is correct prob got minimum 88 🤓 but could be 95 🤓🤓 grade boundaries prob gonna be high 🤓

Reply 54

mathshnj

apparently i got 60 ish marks which is funny cause i was expecting like 30s lmao

Reply 55

username6042973

Original post by 22gz

According to those marks if the unofficial mark scheme is correct prob got minimum 88 🤓 but could be 95 🤓🤓 grade boundaries prob gonna be high 🤓

so the grade boundaries are going to be high just because you got a high score? very stupid

Reply 56

cuttino_3

Does someone have the paper?

Reply 57

22gz

Original post by B7861

so the grade boundaries are going to be high just because you got a high score? very stupid

It was a much easier paper than previous years you have to admit unless papers 2 and 3 are very hard the grade boundaries will rise

Reply 58

username6042973

Original post by 22gz

It was a much easier paper than previous years you have to admit unless papers 2 and 3 are very hard the grade boundaries will rise

yes they will rise but not by an outstanding mark

people on tsr tend to do well and i spoke to plenty of people today who found it difficult so tsr isnt very representitive