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Physics 9702 Paper 33, Nov 27 2015
Anyone know the criteria to check if two values of k is correct according to the equation given in the paper -
How was 9709_w15_qp_22
Agree even I got a a* for olevels and did like 10 years worth of pp. CIE couldn't pick any other year for this darn paper !!!! -
How was 9701_w15_qp_22 ?
I think it was supposed to be hydration. Not sure though -
How was 9701_w15_qp_22 ?
It was supposed to be either Sn1 or Sn2 depending on the halogenoalkane ( primary os tertiary ) -
How was 9709_w15_qp_22
I don't think cause they said to leave two lines after each question :) -
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How was 9709_w15_qp_22
It's not all our fault man. When u practiced the old past papers they were not so tough -
How was 9709_w15_qp_22
Nope I left that and the last part of it. How do u do that ??? -
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How was 9709_w15_qp_22
Yeah I got that. Sorry was talking about the volume of the wedge thing. Where they poured water !! -
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How was 9709_w15_qp_22
Bro I think ur differentiation is wrong. U got to multiply it by -4x which is the differentiation of the inside terms -
How was 9709_w15_qp_22
Anyways this was a messed up paper bro. I used to get 90's straight. After this I'll even settle for a 80 -
How was 9709_w15_qp_22
U sure man. Cause I definitely got a y intersect using that method ? -
How was 9709_w15_qp_22
To prove it u got to use (x1-x2)/2 , (y2-y1)/2 -
How was 9709_w15_qp_22
U got to diferenciate and then get the gradient of the normal. From there get the equation for the normal using the coordinates of the given point (I think it was p) then give x=0 and find y for b. and give y=0 and get x for O -
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