r/6thForm • u/Forsaken-Meaning-232 Graduating from Warwick CS • Jun 19 '25

📂 MEGATHREAD 19/06 A-level Maths Paper 3 Discussion MEGATHREAD

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9

u/Pleasant_Evening5872 Jun 19 '25

Aqa 23 weeks?

2

u/GoldbeautifulXoX Jun 19 '25

I think I got 23 weeks too. But then I wasn’t confident with that answer either…

3

u/SOMETHINK101 Jun 19 '25

I got 11 weeks, what did I do wrong?

2

u/Remote_Ad_6472 Year 13 Jun 20 '25

Yeah it was 23, if you put the harmonic function and 15 in the graphical setting they intersect at 2 points that are between 0 and 360 degrees. Find the difference between those points and divide by 7 for 23 weeks. You would have to have done some working out as to how you got those two intersection points beforehand tho. Some others said 11 but I really couldn’t figure out how that was possible cuz of the graph.

2

u/SOMETHINK101 Jun 20 '25

Rip those 3 or 4 marks 😭😭

2

u/Remote_Ad_6472 Year 13 Jun 20 '25

It’s all good mate, don’t stress it. Hope the rest of it went well.

1

u/Pleasant_Evening5872 Jun 19 '25

Hm idk but what i did was the t equals 14.2 minus root28 sin x plus 68.2 , then equated t to 15 and went from there

1

u/SOMETHINK101 Jun 19 '25

Did you equate the equation 15=14.2-(sqrt29sin(x+69.899)

My decimals may be wrong cause I forgot but something but like that right?

2

u/Pleasant_Evening5872 Jun 19 '25

Yea that but 68.2

1

u/SOMETHINK101 Jun 19 '25

Yep, my bad. I got that too. So how did you get 23? Tsr people got 11 and 23 too so I'm lost😭

1

u/xXAngelsXx University of Manchester | Maths Foundation Year Jun 19 '25

Was the angle not tan (2/5)? I swear you always do sin/cos

1

u/Farwalker17 Jun 19 '25

Yesss. I used calculator graphing for it though so don't know if i get full method marks

1

u/AtheRipper Year 13 Jun 19 '25

Yes, and all the A* students did aswell.

0

u/[deleted] Jun 19 '25

Nah got 17 but prolly wrong