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Edexcel Core 3 - 21st June 2016 AM

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I am pretty sure I got this as well (my answer was deffo smaller than the one that other people are quoting). Wasn't this the question with Tan4x = 4/3 or something like that?

yeah, apparently this value wasn't in the domain so we had to use a CAST diagram to find the larger value, heavy on uss

Reply 1361

lfcrules

Original post by dairychocolate

I got 25.

What was this qquestion and how many marks was it worth?

Reply 1362

jwifiuhrkoa

Q4a was not ln2.5 the answer is 0.5ln (25/4)

Reply 1363

rk_

Original post by KellyLouise0

anyone remember the number of marks for the proof of root in the interval question? (last part of Q4, i think)
I ****ed up, couldn't find a sign change :frown:

any marks for just stating the interval to be used at all?

i also couldn't find the sign change. I had the interval as [1.2565,1.2575] *something like that* but couldn't get a sign change ANYWHERE!!!! :angry:

Original post by k.russell

I am pretty sure I got this as well (my answer was deffo smaller than the one that other people are quoting). Wasn't this the question with Tan4x = 4/3 or something like that?

Yeh tan4x = something with a 3 and a 4. I think I got the same aswell. 0.16...

Reply 1366

BushDiddit

Walk out that test like
I'm the one your girl like

Reply 1367

thehollowcrown

Original post by BSLMaths

Don't worry bud, will only be a couple marks :smile:

sure you did well!

thank you, hopefully i got some marks on that question anyway! you too :smile:

Reply 1368

QueenOfNachos

Original post by lfcrules

what was 3 c?

Apparently the answer is 86.1 degrees but I couldn't see the question so I can't tell what it's about

Reply 1369

Reda2

I thought I could do all questions but I didn't!! Exams are simply not for me...

For my minimum grade predictions I need now A in C4 for overall B, or for my maximum marks I got, I will need overall B in C4 for overall B.

My days, pissed me off. How did you FLIPPIN do the question after you proved cotx? I just could not simplify it!

Reply 1370

SaxyBeast98

How many marks was question 1?

Posted from TSR Mobile

Reply 1371

Yua

Original post by Aerosmith

2a) can be further simplified. multiply top and bottom by -1 and then factorise it. should be 4/(x^2 + 5)

you've made an error, that is impossible

Reply 1372

lfcrules

What was the question a bout the asymptote k where the answer was 25 , how many marks was it worht?????

Reply 1373

rk_

Original post by jwifiuhrkoa

Q4a was not ln2.5 the answer is 0.5ln (25/4)

your both correct but 0.5ln(25/4) is equal to ln((25/4)^0.5) which is ln(5/2)

Reply 1374

psychemma

Original post by jwifiuhrkoa

Q4a was not ln2.5 the answer is 0.5ln (25/4)

I think I got this as well

Reply 1375

clarkey500

I thought the exam was moderate really. I've seen easier exams and I've seen harder. I proved the 2 things (I think it there were 2) they wanted me to prove so I should get marks there. I think I've probably got a score in the 60's/75 which should be an A/A* to boost my average up after M1.