#welcome #general-chat (5 Viewers)

[Etho_x]

@Drdusk Is it possible to move this thread to the "General Discussion for the 2021 HSC" forum or will it have to stay here in the Prelim HSC forum

 

[fridgmagnet]

On school days I'd sleep at 12 and wake up 7-7:30 cuz school's of a good walking distance from home, but in holis I sleep 1/2ish sometimes 3

lmao anything later than 12 and I will not be functioning properly the next day , idk how y’all do it

 

[Etho_x]

lmao anything later than 12 and I will not be functioning properly the next day , idk how y’all do it

Idk either coffee helps me through it ig

 

[Drdusk]

@Drdusk Is it possible to move this thread to the "General Discussion for the 2021 HSC" forum or will it have to stay here in the Prelim HSC forum

What in the world. What is this doing here lol. Yeah I’ll merge it with the 2021 chat in that forum.

 

[Etho_x]

I still can't believe I was the person to start this chat like back in December last year and there's 44 pages of this thread now

cmon guys be more active

 

[Etho_x]

What in the world. What is this doing here lol. Yeah I’ll merge it with the 2021 chat in that forum.

Think when I started the thread my dumb ass put it in prelim cuz there was no 2021 forum

 

[idkkdi]

For part C if you want a truly quick solution,
-sub in 'i' into the RHS of (b), you get product of roots as z^2 and 1 cancel out, do this to the sum of roots on LHS.
-sub in '1' into RHS of (b), expand the brackets and u get sum of roots, do this to the sum of roots on LHS.

no. sub in 1 gives undefined on lhs.

 

[tito981]

no. sub in 1 gives undefined on lhs.

i said sum of roots, this is the 1+z^1+z^2... equation as it is equivalent to the fraction on LHS.

 

[idkkdi]

i said sum of roots, this is the 1+z^1+z^2... equation as it is equivalent to the fraction on LHS.

__________________

 

[tito981]

Great u reach something which is determined from z5-1/z-1 which establishes z=/1.

oh shit did not see the z=/1 in the question lol

 

[tito981]

Great u reach something which is determined from z5-1/z-1 which establishes z=/1.

would it work if i equated the sum of roots to the RHS and subbed in z=1 for where z=1 is defined?

 

[idkkdi]

would it work if i equated the sum of roots to the RHS and subbed in z=1 for where z=1 is defined?

__________
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actually tbh not sure about this. because i used to sub in 1 as well lol.

 

[tito981]

the equation starts from z^5-1/z-1 = (quadratic)(quadratic)/z-1 -> z =/1 , or else denominator undefined.
from which you then get sum of roots = (quad)(quad), if you sub in z =1, it indicates that in the previous step you divided by 0.
actually tbh not sure about this. because i used to sub in 1 as well lol.

i think it is valid to sub in z=1 unless it is stated z=/1 in the q and or the fraction in (b) is given.

 

[idkkdi]

i think it is valid to sub in z=1 unless it is stated z=/1 in the q and or the fraction in (b) is given.

it's valid. i was tripping.

 

[BLIT2014]

How are people feeling after this year?

 

[Etho_x]

How are people feeling after this year?

Quite tired but pumped for next year

 

[BLIT2014]

Quite tired but pumped for next year

Been a long year emotionally for many so make sure you take some time to recuperate and get some sleep.

 

[Etho_x]

Been a long year emotionally for many so make sure you take some time to recuperate and get some sleep.

For sure for sure I’ve tried to have my balance of life and study so far during the holidays, we can only pray next year will not be a replication of this year : 0

 

[Kyufruit]

How are people feeling after this year?

I feel like we’re going to have to quarantine sometime in 2021 and honestly not looking forward to it ugh

 

[B1andB2]

How are people feeling after this year?

HSC is inevitable (in some sense) just got to suck it up, put our head down for a year and make the most of our last high school year with friends.