# Carrotsticks' 2017 Mathematics Extension 2 solutions (1 Viewer)

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#### kibellion

##### New Member
ooh what questions in particular?

##### Member
Up to Q16 atm and have to do a few diagrams, so won't be too long hopefully.

If you're wondering about my opinion on the paper, I reckon it was a pretty difficult paper compared to other years actually.
I thought the paper was of medium difficulty, apart from a few questions (the conics & hyperbola + ellipse, that trick for the very last question where you had to subtract got me, q10 mc I didn't know, last part of circle geo, q16 complex numbers summing that thing in part 2 i think)

I'd guess I got around 80-85 raw. Really disappointed in myself tbh.

What do you think the e4 cut off will be?

#### RandomNG

##### New Member
Ignore this post.

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#### InteGrand

##### Member
What was question 9?

#### InteGrand

##### Member
Ok thank god lol

Do you have any idea on what the e4 cut off raw mark wise would be?

#### Carrotsticks

##### Retired
Okay done just briefly checking now and formatting etc.

#### Carrotsticks

##### Retired
Was stuck on Q16 (a) (ii) for ages because I insisted on trying to be clever and breaking it up into two sum of GPs because the other way is 'stupid'. Turns out that was the way to go top kek (cries).

##### Member
was stuck on q16 (a) (ii) for ages because i insisted on trying to be clever and breaking it up into two sum of gps because the other way is 'stupid'. Turns out that was the way to go top kek (cries).
right same fml wouldn't it be great if i could trust my stupid senses more off lol

#### RandomNG

##### New Member
Q10 is (B).
My apologies, I got confused with the 2 choices. Yes it is (B).

#### Carrotsticks

##### Retired
The locus question in Q11 (a) is wrong btw, so ignore that. It's basically what I have but the circle falls short of hitting the origin.

#### trecex1

##### Active Member
Q1 has 8 roots doesn't it?

Also ahh are there 4 values for a in q16? I assumed a had to be positive

Edit: I think 11b) may be wrong? since those values are for a^2 and b^2 not a and b

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##### Member
I think you stuffed up 11 (b), a = 2 root 3

1 is C

#### Carrotsticks

##### Retired
Q1 has 8 roots doesn't it?

Also ahh are there 2 values for a in q16? I assumed a had to be positive
Today, I learned that I can't count.

(cheers man)

#### fluffchuck

##### Active Member
For 11(b), instead of doing b/a, you did (b/a)^2

#### Carrotsticks

##### Retired
Fixed that one too! Absolute classic.