AnswerS (2 Viewers)

[sxciris89]

what were your answers for the harder parts?
there were sections in the first few
that jst made me stop n go
wtf...;;

wot wer ur answers to
5 - b
5 - c
...and all the rest?

 

[u-borat]

5c) i said angle plk=angle pqm(ext angle of cyclic quad equal to opp int angle)
then angle pqm=angle tpm, alternate segment theroem
and tpm=lpk, vertically opposite
therefore plk=lpk and LPK is isoceles.

 

[chewnugm]

what were your answers for the harder parts?
there were sections in the first few
that jst made me stop n go
wtf...;;

wot wer ur answers to
5 - b
5 - c
...and all the rest?

5b I had amplitude=2/3 and period t= 2pi/3
5c all angles
TPM = KPL (vertically opposite)
TPM=PQM (angle in the alternate segment)
PQM=KLP (exterior angle to a cyclic quad = interior opposite) or (PLK=180-PQK=PQM)
therefore TPM=KPL=PQM=PLK
therefore KLP is isocele (base angles of isos. triangle are =)

 

[u-borat]

confirm the answers for amp and period.

 

[sxciris89]

and how many mins were for Q4?
and would i lose marks if i didn put in
"proven by mathematical induction?"

 

[bazza159]

i think i got 2 for the amplitude and 2pi/root3 for the period

 

[scott.syd]

confirm the answers for amp and period.

i got that too, i think its correct

 

[chewnugm]

and how many mins were for Q4?
and would i lose marks if i didn put in
"proven by mathematical induction?"

I had 3 hours 44mins so 12:44PM

 

[u-borat]

i gots 4 hours 40 min, 1:40. =S

 

[sakaki.kun]

SHM Answers:

n = 3

a = 2/3

T = 2 pi / 3

Q4 a) ii) 225 mins which equals to 3 hours and 25 mins. Therefore it will be cooked at 12:45pm.

 

[independantz]

SHM Answers:

n = 3

a = 2/3

T = 2 pi / 3

Q4 a) ii) 225 mins which equals to 3 hours and 25 mins. Therefore it will be cooked at 12:45pm.

ditto

 

[DrFunk]

it's actually cooked at 12:44, as it said to the nearest minute..

The rough answer if I remember correctly was like 3 hours 44.4 min. rounds down

 

[henry08]

it's actually cooked at 12:44, as it said to the nearest minute..

The rough answer if I remember correctly was like 3 hours 44.4 min. rounds down

I got the same. It made me hungry and think of lunch lol.

 

[lost1]

wa Q6 c (i) & (ii) both (p+q)Cq or something like that?

 

[SkimDawg]

Who finished the inverse function? I graphed it but could get rid of the extra fucking y. ive obviously missed something.

 

[lost1]

you 'complete the square' with the y terms in one side and then square both sides so you only have one 'y' as the subject

 

[friction]

Anyone else prove the MK = ML or whatever it was by congruent triangles ??

Also i had one of the answers and then put a line through it and changed it, will i still get 1 out of 2 ??

 

[tacogym27101990]

Anyone else prove the MK = ML or whatever it was by congruent triangles ??

Also i had one of the answers and then put a line through it and changed it, will i still get 1 out of 2 ??

no i used circle geometry

 

[chewnugm]

no i used circle geometry

Yeah i used circle geometry too. PQ is the diameter of a circle (right angles are produced in a semi circle)
the centre is half the diameter ie M
therefore MK and ML are radii and therefore equal