Q13 (1 Viewer)

Nooblet94

Premium Member
Joined
Feb 5, 2011
Messages
1,044
Gender
Male
HSC
2012
Just checked on wolframalpha and it's 22 something. Ugh.
 

GoldyOrNugget

Señor Member
Joined
Jul 14, 2012
Messages
583
Gender
Male
HSC
2012
RishBonjour same here =\ what external mark do you reckon 68/70 will get?
 

osak23

Member
Joined
Jan 15, 2012
Messages
97
Gender
Male
HSC
N/A
for cii) i got some shitty figure but rounded off to 2 d.p : 1.5 s

for d) i) 5 hours
ii) i just did 1 application of newtons method and got t=25hrs???
i think its wrong..didnt get wtf the 0.3mg/l is?

will i get a mark for doing 1 application of newtons though??
 

RishBonjour

Well-Known Member
Joined
Aug 14, 2011
Messages
1,261
Gender
Male
HSC
2012
How do you actually do it though? I used x = Ancos(nt + alpha) but im guessing that probably wrong. From memory alpha ended up being inverse tan(-4/3) ?
I think it was Ancos(nt - alpha) and you should get 1.511.
(although you could do it with sine, doesn't matter)
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top