Edexcel A Level Further Mathematics Paper 3A (9FM0 3A) - 22nd June 2023 [Exam Chat]

That's not too bad if you just learn some tricks on how to integrate. If not, do something like +1-1 it works lol. Something like t^2/(1+t^2). You add 1 then subtract 1 on the numerator so you have the 1+t^2 bits cancel and you're left with a constant + a standard arctan integral. easy

hey if anyone has done the 2022 paper, does anyone get how you know to reject y=8x+24 for question 7? it says correct reason for rejection is not needed for the mark but im confused as to how you can tell., both going through x = -3. Other solution has to be from a tangent meeting with the extension of the 8 - x^2 graph

Anyone know how to do this?

Anyone know how to do this?

That was a decent paper, heres all the answers I could remember and the inequality graph (if this is against the rules please lmk )

That was a decent paper, heres all the answers I could remember and the inequality graph (if this is against the rules please lmk )

Does anyone remember how many marks for that limits part of the question?

The first range for the mod graph question was x < (- 7 - root57) /2
Also the values of the coefficients of cos theta and sin theta in the ellipse question are wrong because the eccentricity of that ellipse isn't roo7/4

That was a decent paper, heres all the answers I could remember and the inequality graph (if this is against the rules please lmk )

Guys what was your final answer to the integration question? Does anyone remember? T formula one

I got:
(1/root5)arctan((3tan(x/2) + 1)/root5)
Or something like that (can't fully remember).
You had to complete the square for the denominator and then do u = (t+2/3)^2 to have it ready for the arctan integration.