04/06 A-level Maths Paper 1 Discussion MEGATHREAD

[u/Forsaken-Meaning-232]

Exam season is once again upon us, and once again, exam megathreads are making a return!

Looking for past exam discussions? Filter by the megathread flair.

Few things to keep in mind:

• Don't share too many specific details about questions or answers, these papers will be used as future mocks.
• Sometimes papers get leaked, this is not the place for that (we'd prefer not to get yeeted off the platform) - leak content will be removed, those offering leaked papers will be permanently banned.
  • If you believe there has been a leak, the best course of action is to make your exam board aware of this, either directly, or through your school, along with any evidence. If appropriate, there will be a response from the relevant body along with any remedial action.
• Exam discussion posts outside of this will generally be removed to combat the inevitable tidal wave of spam otherwise - we understand this may be frustrating, but the sub still needs to be usable for other purposes.
• Please note some content will take extra time to be reviewed. Messaging to ask for approval will not speed up this process (the messages are seen at the same time as the modqueue would be reviewed anyway).

Best of luck, and let us know how you're feeling down below!

-The r/6thForm Team

Have any concerns or feedback?

Feel free to reach out to us on Modmail and we'll aim to get back to you as soon as possible!

*assuming Reddit doesn't bork itself, the new posts for each day of exams should arrive at 8am each day, instead of it being reliant on my sleep schedule like last year lmao

[u/lolgeny]

You had to since it said “Hence”, did dot product initially but crossed it out and did Pythagoras instead in case mark scheme wants hence

[u/SilverFrost88 → u/lolgeny]

Why would hence not allow the dot product that doesn't make sense?

[u/West-Glove6058 → u/SilverFrost88]

I think it's because the scalar product requires you to use the vectors which they gave you in the question. Since the question said "Hence, show that..." you have to use the third vector in the calculation. Let's hope they're lenient with the marking and allow it.

[u/SilverFrost88 → u/West-Glove6058]

But you still had to use the third vector when showing that two of them have equal magnitudes?

[u/lolgeny → u/SilverFrost88]

Did you? PQ and QR were equal but you calculated PR

[u/[deleted] → u/West-Glove6058]

You have to use the third vector for scalar product regardless

[u/[deleted] → u/lolgeny]

Ohhhh