Maths Ext 2 Predictions (4 Viewers)

[K1uggie]

guys is there a chance i can make an e4 with a 64 raw

I dont think so it seems this exam was a little easier than the last 2 yrs where a 64 could've

 

[HazzRat]

Where do u think the b6 cutoff will be? Maybe 70-75?

 

[Lachlan is the best]

Did anyone else get t=1/k for the last question?

 

[potpal]

I dont think so it seems this exam was a little easier than the last 2 yrs where a 64 could've

thanks ((((

 

[K1uggie]

Where do u think the b6 cutoff will be? Maybe 70-75?

Yeah that seems right

 

[user1207]

I’m crying that I couldn’t get that question . I wrote some bs working out like the integration by parts was wrong or smthn.

Same and now I realise I’m so annoyed

 

[K2Trappy]

im still praying on that e4

 

[drani]

constant of integration, obvious i fear

My mate and I also wrote this… but one of them was doubting it so I just wanted to check what other people did. It really couldn’t have been anything else. Hopefully you went well for the rest of it.

 

[Armon]

Is Q8 even in syllabus? Knowing that exp(x+iy) = exp(x)exp(iy) surely isnt in the scope of 4u. I’m sure most 4u students have discovered exp(z)^n = exp(nz) doesn’t always hold true for non integers (hence demoivres only being true for integers) so to expect them to know the addition of exponents does always hold true in complex field is a bit iffy.

 

[appleali]

just use elimination to arrive at A for q8

 

[Allan Mekisic]

constant of integration, obvious i fear

 

[Allan Mekisic]

constant of integration, obvious i fear

I wrote constant of integration missing and you don’t need to integrate it using IBP

 

[K1uggie]

just use elimination to arrive at A for q8

Yeah that what i did

 

[K2Trappy]

what u guys think alignment is gonna look like? last yr e4 was like 65 maybe 70???

 

[Allan Mekisic]

What was the substitution required for the integral in Q15c ?

 

[lqmoney]

What was the substitution required for the integral in Q15c ?

x-1=sintheta worked

 

[askit]

Complete the square then x-1 = sin(theta) is what i did

 

[sly_lyepat]

raw mark 70 should be good for e4 if this test was on par with 2021

 

[K2Trappy]

What was the substitution required for the integral in Q15c ?

sin^2(x) I heard but I was soo lost I tried everything and then just gave up

 

[user1207]

just use elimination to arrive at A for q8

yup that's what i did