General Thoughts: Mathematics Extension 1 (6 Viewers)

[Patato]

Re: Wow, fuck that

wasn't the question find the exact value of cos-1(-1/2)??

which is pi - cos-1(1/2)
= pi - pi/3
= 2pi/3

?

 

[OmmU]

Re: Wow, fuck that

I did that at first and then I did it all over again and quickly chose an answer.

i got A = 0 as well

I took the +ve version :\

And A was 0

 

[kev-is-red]

Re: Wow, fuck that

I got 8:46am!
YESSS.

I got 8:47 am.

Sigh.

 

[lpodnano]

Re: Wow, fuck that

yayyy. I got A=0. I kept thinking it was wrong because I kept checking over my working out. B=2 right? from memory... I think..

 

[muzeikchun852]

Re: Wow, fuck that

wasn't the question find the exact value of cos-1(-1/2)??

which is pi - cos-1(1/2)
= pi - pi/3
= 2pi/3

?

thats what i got as well.

yayyy. I got A=0. I kept thinking it was wrong because I kept checking over my working out. B=2 right? from memory... I think..

yep.

 

[someth1ng]

I hope E4 cut-off is around 52/84...

 

[Fizzy_Cyst]

Re: Wow, fuck that

Very LONG.

 

[itznegarbabiii]

Re: Wow, fuck that

i got A = 0 as well

yay
did u get B=2 ?

 

[Tasha270494]

Re: Wow, fuck that

What was the total distance the particle travelled? 8?

 

[friend177]

noooooo. I did that too. I took the positive time. damn

Fml I added 1:14 to 10am not minus it FML there goes 1 mark hopefully I'll still get 2/3 considering I found theright time..God bless us all

 

[HyperComplexxx]

Re: Wow, fuck that

What was the total distance the particle travelled? 8?

ohh mother of god.... i got 6

 

[damo_g]

You were supposed to get a negative time???? I got the negative time and tried to figure out what was wrong but couldn't see anything so i just left it.

 

[Tasha270494]

Re: Wow, fuck that

ohh mother of god.... i got 6

.. lol your probably right, I was soo confused

 

[kev-is-red]

The very last thing I did was go back and found that A = 0 and B = 2

Cheerin!

 

[lpodnano]

Re: Wow, fuck that

Oh shit, I think I got 4 -.-

 

[Patato]

Re: Wow, fuck that

What was the total distance the particle travelled? 8?

yep it was 8

 

[lpodnano]

Re: Wow, fuck that

ohh mother of god.... i got 6

Igot 4 -.-

 

[slyhunter]

Re: Wow, fuck that

I got 8:47 am.

Sigh.

They might be lenient and award the mark there.

 

[Implying]

Re: Wow, fuck that

8 or 8n or something, i can't remember

i intergrated from 0 to 2pi/n for the acceleration graph, as the area under an acceleration graph is equal to displacement =/

 

[Tasha270494]

Re: Wow, fuck that

8 or 8n or something, i can't remember

i intergrated from 0 to 2pi/n for the acceleration graph, as the area under an acceleration graph is equal to displacement =/

.. isn't it under a velocity-time graph?