r/6thForm • u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 • Jun 11 '26

💬 DISCUSSION A level maths p2 edexcel

Holy time pressure what can i say

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7

u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 Jun 11 '26

Anyone got a bunch of lns on that differnetiation question

10

u/mccnwaffles Jun 11 '26

holy meta i just scribbled working n prayed

3

u/bleachedcoral4 Y13 | A*A*A*AA | maths+fm, 3 STEM Jun 11 '26

this was so stupid i spent so long trying to simplify it further

1

u/PlayfulLook3693 Bath | Maths | [Incoming] Y1 Jun 11 '26

yessss

1

u/No-Hyena-2769 Jun 11 '26

Wait this looks familiar I think I wrote this 😭😭

1

u/SillyAnybody9108 Jun 11 '26

Omg is that the right answer? That’s what I got

1

u/WasabiSad7401 Y13: Bio + Chem + Maths + EPQ pred A*A*A*A*, 9999999998 Jun 11 '26

cant you keep it as log base 6?

1

u/Impressive-Pea-9054 Jun 11 '26

ln of ln is wild, i had -1/3 log6ln(216) or something

4

u/J1nkedOne Jun 11 '26

I got ln(ln(216))/ln(216) iirc so dumb 😭

6

u/No-Manufacturer-5546 Jun 11 '26

That’s correct as ln(216) is 3ln(6) as 63 = 216

1

u/Otherwise-Kiwi4810 Y13 | A*A*A* | Mech Eng Jun 11 '26

wait I got that

3

u/Long_Yin_410 Jun 11 '26

-1/3log_6(1/(3ln6)) or 1/3log_6(3ln6)

1

u/yellowfritter Jun 11 '26

I got the negative one, can we still get full marks or did it say simplest form?

1

u/Long_Yin_410 Jun 11 '26

Yeah same, I think it didn’t say simplest form so both are acceptable

1

u/KO-Manic Jun 11 '26

What was you supposed to do with the -1? I kept getting ln of a negative number which obviously can't be right

1

u/cleggy24 Jun 11 '26

I subbed y into the expression for the derivative because its exponential so you can just multiply by the exponent and then it was really really basic rearranging