Question 1 is integration by parts, I haven't learnt that yet. Did anyone do question 4?

I'm thinking of just getting drunk after my interview to take my mind off the exam later on. They could've made them sooner!!

Reply 186

Mitch92uK

2

Question 1 has blown my mind a bit .. how did you start jeg?

@wma, I had no idea where to start with question 4 lol

Reply 187

sasjegbruv123

1

wmalouf

Question 1 is integration by parts, I haven't learnt that yet. Did anyone do question 4?

I'm thinking of just getting drunk after my interview to take my mind off the exam later on. They could've made them sooner!!

u mad man!! i saw question 4 and just moved on lol

Reply 188

sasjegbruv123

1

Mitch92uK

Question 1 has blown my mind a bit .. how did you start jeg?

@wma, I had no idea where to start with question 4 lol

well u will know how to do this if u are doing c4 at the moment... basically we want to change sin^2 x to something with no powers. so subsitute sin^2 x = 1/2 - 1/2 cos2x (from trig id cos^2 x - Sin^2 x = Cos2x)

then u have integral 1/2 x^2 - integral(1/2 x^2 cos2x)

then integrate both of these. Do the second integral by using integration by parts (u'v = uv - integral(uv')). final answer should be something ridiculously long lol

Reply 189

Mitch92uK

2

sasjegbruv123

well u will know how to do this if u are doing c4 at the moment... basically we want to change sin^2 x to something with no powers. so subsitute sin^2 x = 1/2 - 1/2 cos2x (from trig id cos^2 x - Sin^2 x = Cos2x)

then u have integral 1/2 x^2 - integral(1/2 x^2 cos2x)

then integrate both of these. Do the second integral by using integration by parts (u'v = uv - integral(uv')). final answer should be something ridiculously long lol

Cheers for that mate but I'm still C3ing atm, kudos for going through it though. I did wonder why I kept getting ridiculous answers which I had to integrate/differentiate (I did attempt by parts but obv due to not knowing the C4 stuff I didn't know where to go from there).

Reply 190

sasjegbruv123

1

Mitch92uK

Cheers for that mate but I'm still C3ing atm, kudos for going through it though. I did wonder why I kept getting ridiculous answers which I had to integrate/differentiate (I did attempt by parts but obv due to not knowing the C4 stuff I didn't know where to go from there).

kk, how many questions would they expect us to do do u reckon??

Reply 191

Mitch92uK

2

sasjegbruv123

kk, how many questions would they expect us to do do u reckon??

Bearing in mind ours will be AS/GCSE stuff, and that when I emailed the college they stated the test was marked on an individual basis ie. on what modules we'd done I presume we'd be expeced to answer more than we could in the trinity exam.

Reply 192

wmalouf

I just studied the integration by parts today. Yeah, I asked my teacher about question 1. It isn't that hard. Yeah, just make it linear. You get a double integration kind of thing.

As for question 4, I'll get the exact answer tomorrow. I'll take it to my teacher, as usual.

Reply 193

Mitch92uK

2

wmalouf

I just studied the integration by parts today. Yeah, I asked my teacher about question 1. It isn't that hard. Yeah, just make it linear. You get a double integration kind of thing.

As for question 4, I'll get the exact answer tomorrow. I'll take it to my teacher, as usual.

Mate I'm with Jeg 4 I don't even know where to start with 4. No way that's AS and GCSE stuff surely ...

Reply 194

wmalouf

Mitch92uK

Mate I'm with Jeg 4 I don't even know where to start with 4. No way that's AS and GCSE stuff surely ...

They are supposed to "stretch you", as they say.
Lucky me, I'm not even doing A levels, and I haven't done GCSEs. I emailed them asking for a sample test, explaining that I'm not doing the A levels. I was told that churchill has no samples. Also, you have to remember that Trinity's test is done before the interview, so that the answers are discussed, as well as techniques for solving them. With churchill, we don't discuss them, so maybe they wouldn't be as difficult.