Terry Lee Solutions 3U (4 Viewers)

[bornjovied]

Well, ur not actually stating the probability of something happening unless you put it into a fraction or sentence.................

 

[Revacious]

so how many marks can i expect to lose for that whole section, because i was too lazy to put them in my calculator?

 

[siddharthlaha]

Terry must seriously find something else to pass time.

.....man, maths is over... dont bring it up again

 

[2013641-]

Terry must seriously find something else to pass time.

MAJOR LOL. Ext1 depressed me. You have made my day.

Many thanks!

 

[Top Secret]

MAJOR LOL. Ext1 depressed me. You have made my day.

Many thanks!

Lol, no problem. XD

 

[00iCon]

HEY GAISE.

if i convert cos^2 x into 1/2[1+cos2x] AND THEN DIFFERENTIATE x.1/2[1+cos2x]

IS THTAT STILL ACCEPTABLE!?!?

AH SHIZZLEGRIZZLEFOSHIZZLE T_T

i think that's what i did. umm WTF did terry lee do????

 

[annabackwards]

i think that's what i did. umm WTF did terry lee do????

Product rule and chain rule, which i did

 

[meilz92]

LMFAO ur kidding



band E2, here i come!!

 

[harry4]

fuck for probability i let p=1/5 and q=4/5 in stead of 1/4 and 3/4 do you think i could stil get 1 mark for each for getting the 5C3 part right?

 

[The Nomad]

Any think an 83/84 would amount to 100% scaled? I didn't lose any marks but am quite sceptical that they'll accept some of the mess I made.

 

[00iCon]

fuck for probability i let p=1/5 and q=4/5 in stead of 1/4 and 3/4 do you think i could stil get 1 mark for each for getting the 5C3 part right?

so u had 5C3(1/4)^2 (3/4)^3 ?
One mark probably, but that would carry on to part ii) so 2 marks lost altogther out of 5.

I actually had 5C2 and i wsn't sure which one it was, but they're equal which is good.

If u calculate it, it's quite a small fraction, which i wrote down. I think that's what they were looking for.

 

[emmalou13]

lol i wish hadnt looked at the solutions now
now i know how bad i failed by :S

 

[bayan92]

Question from a friend:


"In Question 1e) is it wrong that i simpliefied cos^2x -2xcosxsinx = cos^2x - xsin2x??"

 

[harry4]

so u had 5C3(1/4)^2 (3/4)^3 ?
One mark probably, but that would carry on to part ii) so 2 marks lost altogther out of 5.

If u calculate it, it's quite a small fraction, which i wrote down. I think that's what they were looking for.

no i had 5C3(1/5)^2(4/5)^3

think i got confused by the 5 questions

 

[Mas1991]

if the adding up error is taken into account, should get 73. if only they gave half marks, i could be on 76/76.5

 

[study-freak]

Question from a friend:


"In Question 1e) is it wrong that i simpliefied cos^2x -2xcosxsinx = cos^2x - xsin2x??"

lol, absolutely not
as in correct

 

[Aquawhite]

Stupid exam >_<... fml.

I screwed it up and am gunna lose so bad now!

I think I'll be very lucky to scrape at E4... looks like I'm gunna have to repeat 3U!

 

[Top Secret]

Any think an 83/84 would amount to 100% scaled? I didn't lose any marks but am quite sceptical that they'll accept some of the mess I made.

Hmm, I assume you're accelerating. If so, then that is quite an achievement!

Regarding your question, I'm not too sure, but I believe it'll simply scale to ~99.8.

 

[TannouB]

Question from a friend:


"In Question 1e) is it wrong that i simpliefied cos^2x -2xcosxsinx = cos^2x - xsin2x??"

Dont worry i did the same thing, 100% right dude

Soooo thats how u do the stupid nCr qi.

Only question i couldnt get good in, in the whole effing test was question 6 .

 

[M@ster P]

just marked my paper, got 55 - 60 /84. Nothing special i guess, lucky to get e4 but e3 is fine.

Now gotta study, enough bludging for today