General Thoughts: Mathematics Extension 2 (1 Viewer)

[OzKo]

Share your thoughts here.

 

[Carrotsticks]

Meh paper.

 

[Thesandpeople]

Can you upload the paper Carrotsticks? Or where can you find it?

 

[seventhroot]

it was alright

 

[Carrotsticks]

My goodness, drawing that graph took nearly half an hour. Making it pass through the required points + borderline OCD = Much frustration and time wasted.

 

[iStudent]

Couldn't do the ghey integration q16 and the ghey 3 marker inequality questions (16bi) gheyyyyy

 

[Speed6]

Couldn't do the ghey integration q16 and the ghey 3 marker inequality questions (16bi) gheyyyyy

Ghey

 

[iStudent]

This paper was harder than last year's.

 

[QZP]

Lollllllll............ I completely didnt see a piss easy 3marks in Q12.zzzz
edit: missed 2 more ... wtf

 

[iStudent]

Time was good for me had over an hour for q16

 

[panakap]

A lot of questions required a lot time to do eg. the graphs that Carrotsticks is mentioning about. :/
Not feeling the best about this, quite difficult I must say.
Still think I can get a 75 raw but that may be farfetched

Anyone have the solution to the last integration?

Find the integral of lnx/(1+lnx)^2 dx

Is it a substitution of some sort?

 

[rumbleroar]

Really need pity marks otherwise gg for q16 inequalities. Other than that I think I went alright, max raw about 94 because I bsed my way through a lot of proofs.

No probability


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[rumbleroar]

A lot of questions required a lot time to do eg. the graphs that Carrotsticks is mentioning about. :/
Not feeling the best about this, quite difficult I must say.
Still think I can get a 70 raw but that may be farfetched

Anyone have the solution to the last integration?

Find the integral of lnx/(1+lnx)^2 dx

Is it a substitution of some sort?

Add one, minus one for the numerator. Then you can split it. You end up getting the original integral twice and you use IBP for the last bit so the answer is x/(1+lnx) iirc


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[Cleavage]

Overall, I found it an easier paper than previous years

but i found myself stuck in the whole "hsc exam" type atmosphere/stress

I'll be happy with an ~85 raw, ~80 raw is probably more accurate

 

[iStudent]

Add one, minus one for the numerator. Then you can split it. You end up getting the original integral twice and you use IBP for the last bit so the answer is x/(1+lnx) iirc


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Wow nice. I tried staring at it for 10 minutes but still couldn't get it :'(

 

[emilios]

Did anyone else fuck up? That was hard as shit for me. Gg conics. One question took like half an hour. Max raw like 75.

 

[Cleavage]

Anybody going to speculate about aligning?

Carrot?

 

[iStudent]

Add one, minus one for the numerator. Then you can split it. You end up getting the original integral twice and you use IBP for the last bit so the answer is x/(1+lnx) iirc


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I did that but I couldn't integrate 1/(lnx+1)^2

 

[rumbleroar]

I did that but I couldn't integrate 1/(lnx+1)^2

You had to move it to the other side


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[Cleavage]

Add one, minus one for the numerator. Then you can split it. You end up getting the original integral twice and you use IBP for the last bit so the answer is x/(1+lnx) iirc


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I tried u = lnx, and x = e^(u) and IBP, but alas i did not succeed, and doubt I will get any marks for working