SO annoyed. I made one teeny tiny error on 8c and got the wrong x.
seeing as 8d and e follow on from c's answer...how many marks would I lose for doing the correct method and everything just wrong values? Would it be :
1) all the marks for just getting it wrong 2) I'd get one out of two for each d and e for method marks or 3) error carried forward so wouldn't lose marks on d and e, just c?
Hi.. (waiting for model answers ) I think it was ok, but I was re-taking. Our L6 was complaining about the logs in question 2.. but that's them
Anyway, in question 3 for the perimeter of the sector I forgot to add the radius, so basically I calculated jsut the arc length (as 9.28). And in question 6 I only got 0°, 39.2° & 90°, and not the other two solutions. How many marks would I have dropped there? I'm hoping for 90UMS, and if that's it, it should be alright, shouldn't it?
Thanks (also to Arsey for providing this!)
Nik
Why make it complicated with the sector. You had the radius and theeta. so simply use P = r (2+theeta), which was one of the forumulas in the c2 book. P = 5 (2+1.855) = 19.275
The examiners don't set the paper to catch you out. They want to test your ability to respond to a question, and in order to do so, you have to actually read the question properly. A triangle is not a sector; sectors have an arc
I have found using areas of common shapes leads to more students getting right. Curve - method is generally a bloodbath.
Hey Arsey thanks a lot
...i just had a few questions....for the integration i used the wrong limits completely (they werent from the answer before). how many marks would i lose for that?...and for the perimeter of the sector i worked out triangle...how many would i lose for that?
I did not include 90 degrees since I thought it wasn't an option. However I did include the 0 and 180 plus the 2 cos degrees (can't remember what they are now). Will I get full marks?
OOMGGGGGGGGGGGG I FEEL LIKE THE DUMBESSSTTTTT ONE NOW - 7B. trapezium rule: how can i use h = 1/5 ? - 8D. and great i substitute the x to the differentiated one instead of the actual area. - 5B. also i have NO idea how i got my area of the curve thingee wrong. omg how did i use my calculator :/ :/ - proof can just go & marry the Sn !
I would say there is 0% chance 62 will be enough for an A. Definitely a B I would say.
Arsey, you know question 5) the integration one finding area of P I did (x^2 - 11x + 18)dx using the limits 9 and 2 is that right? I think I got the same answer ....
Arsey, you know question 5) the integration one finding area of P I did (x^2 - 11x + 18)dx using the limits 9 and 2 is that right? I think I got the same answer ....
Thank you for checking. But im sure in the exam i put a-ar^n. So would it be full marks? Im feeling very sleepy at this time so thats why i made a silly error now without checking. :P
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