Q11 (1 Viewer)

Rafy

Retired
Joined
Sep 30, 2004
Messages
10,719
Gender
Female
HSC
2005
Uni Grad
2008
Discuss your answers to Q11 here.
 

124

Member
Joined
Feb 1, 2011
Messages
170
Gender
Undisclosed
HSC
2012
so question e is it (16,4) and g you take out the 1/2 and leave with secx^2 to tan yeah?
 

S1MZ8

Member
Joined
Sep 11, 2012
Messages
38
Gender
Male
HSC
2012
how about we discuss q16c, everyone who studied should get 15/15 for q11
 

duckysd

New Member
Joined
Oct 22, 2012
Messages
20
Gender
Male
HSC
2014
e) Focus (0,6)

g) integral (o - pi/2) sec^2(x/2) has primitive 2tan(X/2)

Evaluate only at pi/2 since tan 0 = 0;

Answer is just 2.
 

abs12345

New Member
Joined
Dec 1, 2011
Messages
3
Gender
Undisclosed
HSC
N/A
isnt it x^2 =4ay so a=4 and the vertex is (0,2) so the coordinates of the focus is (0,6) ?
 

Timske

Sequential
Joined
Nov 23, 2011
Messages
794
Gender
Male
HSC
2012
Uni Grad
2016
so question e is it (16,4) and g you take out the 1/2 and leave with secx^2 to tan yeah?
if the vertex is ( 0 , 2 ) and focus is ( 16 , 4 ) ...
 

JChou

New Member
Joined
Aug 21, 2011
Messages
8
Gender
Male
HSC
2012
when they asked for factorise, what if you solve for x? lol
 

Demise

Member
Joined
Apr 26, 2011
Messages
636
Gender
Male
HSC
2012
I'm unaware if I put 50 or 50/3 for f... It was obviously 50/3 and I'm sure I put it but I'm running it through my head now. FFS!
 

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

Top