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Aqa MPC2 16 May 2012

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Reply 20
Avatar for mulac1
mulac1
Original post by nathano14
Yeah it was


Oh damn, i forgot about -root3 ... :frown:

i didn't manage to fully answer the last question, but did anyone get x=1/3 as the x coordinate of P and log10(10/9) for y?
Reply 21
Avatar for Zoned
Zoned
(tan+1)(sin^2Θ-3cos^2Θ)=0

That was the question that annoyed me most i think.
How do you do this one?
Im abosuletely Outraged with AQA.
Reply 23
Avatar for shyamr93
shyamr93
yes I got this and the final answer was log10 (1000/729)
Original post by shyamr93
yes I got this and the final answer was log10 (1000/729)


SAAAAME
Reply 25
Avatar for shyamr93
shyamr93
What was the sum to infinity when n=4? did anyone get 0.25?
Reply 26
Avatar for raheem94
raheem94
13
Original post by Zoned
That was the question that annoyed me most i think.
How do you do this one?


(tanθ+1)(sin2θ−3cos2θ)=0 (tan \theta + 1)(sin^2 \theta - 3 cos^2\theta) = 0

You will get two equations,
tanθ=−1  and  sin2θ−3cos2θ=0 tan \theta = -1 \ \ and \ \ sin^2 \theta -3 cos^2 \theta =0

The second equation can be simplified, sin2θ−3cos2θ=0  ⟹  sin2θ=3cos2θ  ⟹  tan2θ=3  ⟹  tanθ=±3 sin^2 \theta -3 cos^2 \theta =0 \implies sin^2 \theta = 3 cos^2 \theta \implies tan^2 \theta = 3 \implies tan \theta = \pm \sqrt3
For the 6 marks. Area Bounded between question did people get 222?
Reply 28
Avatar for ryanboi
ryanboi
13
Can anyone remember the questions?

Like Q1) Series

Q2) Trigonometry
Q3) Integration
Q4)
Q5)
Q6) y=7^x
Q7) Circle
Q8) Tan(Theta)
Q9) Log

Correct me if i got the order wrong
Reply 29
Avatar for shyamr93
shyamr93
Original post by unojackflynn
For the 6 marks. Area Bounded between question did people get 222?


I got this
for the stretch question did anyone get stretch in the y direction scale factor 10?
Original post by shyamr93
yes I got this and the final answer was log10 (1000/729)


SAMEEEE:smile:
Reply 32
Avatar for Aqib7
Aqib7
OP
7
I missed the area question of the triangle. i did some of it and was meant to go back to it at the end but ended up doing the trigonometry one.
If C2 was like this i am dreading FP1 on friday. :frown:
Reply 33
Avatar for ryanboi
ryanboi
13
Original post by unojackflynn
for the stretch question did anyone get stretch in the y direction scale factor 10?


I got Stretch X-direction s.f 1/10
Original post by ryanboi
I got Stretch X-direction s.f 1/10


I got 1/root10 as the scale factor :/
Reply 35
Avatar for t.adur
t.adur
Original post by unojackflynn
for the stretch question did anyone get stretch in the y direction scale factor 10?


I got stretch in y direction scale factor 1

:s
How is it 10 ???
log1010
what would the grade boundaries be:redface:
Reply 38
Avatar for ryanboi
ryanboi
13
Original post by mattmattmatt
I got 1/root10 as the scale factor :/


Well The question before asked us to show show Log10x^2= 1+2Logx^2

The question was 2Logx to 1+2Logx^2 using stretch.

So 2Logx = Logx^2

Stretch parallel to x-direction s.f 1/10 will means that Logx^2 turn into Log10x^2 which is the question before
Original post by ryanboi
Well The question before asked us to show show Log10x^2= 1+2Logx^2

The question was 2Logx to 1+2Logx^2 using stretch.

So 2Logx = Logx^2

Stretch parallel to x-direction s.f 1/10 will means that Logx^2 turn into Log10x^2 which is the question before


Yes but you substitute x for the stretch, not x^2, therefore i think it had to be root10, so that when squared it you got 10.

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