Competition - post a photo you've taken of nature >>

AQA MPC2 (Core 2) Exam June 2012

Scroll to see replies

Reply 40

kitkat19

Original post by louisjevans

Did anyone get log(1000/729) for the last question ???

I got this totally wrong but my friend who found the paper easy go that....so its most likely correct

Reply 41

nathano14

Original post by Gillal

yup

How did you get that?

Reply 42

mulac1

Original post by louisjevans

i got stretch in x direction SF 1/(root 10) :confused:

hmmmm... in fact actually it was log10(10x^2)! Doh, i'm worrying now!

Reply 43

PhoenixTear

Original post by mulac1

hope so.. i can't see me dropping any more than 3 marks.

what did people get for the 4 mark (yes 4 mark!!!) transformation question.. i got stretch in x direction SF 1/10

Yup thats what I got too, don't see how its four marks though o.O

Can anyone remember what they got for the area of the shaded bit? I got around 300?1

Reply 44

Taylor_R

Original post by nathano14

Did anyone find the shaded area in the arc sector question? What I done was split the whole thing in half so that you get two right angled triangles, and then I worked out the area of that. Then I worked out the arc area, and took that away from the overall area.

409 cm ^2

What i did, was three calculations,

Found the upper triangle (bit included the segment) then found the area of the lower triangle, then found the area of the sector.

The area of shaded region was

Area of Upper Triangle + Area of lower Triangle - Minus area of sector, which i worked out to be 409 cm ^2 (3.s.f) really really hard though, i mean, if i have it right, there were ridiculous angles involved which you had to find, from knowing that two of the sides were 90 degrees, then use sine rule to find out angle of one of the others, then use answers from the previous parts to get an answer. Im doing fp2,3,4 and i found this paper alot more difficult then all of the past papers. It seemed, that from Jan 06 to Jun 11 papers were easy in AQA now Jan 12 they upped the difficulty, and again they have upped it from Jan, for the June season.

Reply 45

PhoenixTear

Original post by nathano14

Thats exactly what I did, can you remember what number you got? I got about 300

Reply 46

Danatlive

For the trig question I set each bracket = 0.
Think I got 222msq (3sf) for the sector question.

The exam was pathetically difficult, I've dropped at least 15 marks and I was frequently hitting 100% in the past papers.

(edited 11 years ago)

Reply 47

nathano14

Original post by PhoenixTear

Yup thats what I got too, don't see how its four marks though o.O

Can anyone remember what they got for the area of the shaded bit? I got around 300?1

I got 339 point something

Reply 48

shyamr93

Original post by PhoenixTear

Thats exactly what I did, can you remember what number you got? I got about 300

222?

Reply 49

Gillal

Original post by nathano14

How did you get that?

I can't remember much, but I remember getting the gradient= (log10/9)/(1/3), which equals 3log10/9; you take the power up, leaving you with log (10^3/9^3) = log1000/729

Plus I got 222 for the area

(edited 11 years ago)

Reply 50

louisjevans

Original post by mulac1

hmmmm... in fact actually it was log10(10x^2)! Doh, i'm worrying now!

Dont know how to write nicely
my answer

2log10(x) = log 10(10x^2)
log10(x) = 0.5log10(10x^2)
log10(x) = log10 (10x^2)^0.5
there fore x changes to (root 10)x

so k is root 10

so sf is 1/(root10)

which is (root 10/10)

Reply 51

mnyusiwalla1

What was the log question which resulted in log(1000/729)?

Reply 52

ryanboi

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