MedVision ad

General Thoughts: Mathematics (3 Viewers)

the_lebtalian

Member
Joined
Aug 24, 2012
Messages
34
Gender
Male
HSC
2014
For the A/A1 question, I used the A=absinC formula and used angle D as C since it was common and they crossed each other out. Is that right? :S
You didnt have to use the A = absinC formula, but yeah they end up crossing out.

you just had to rearrange it so that rt A1 and rt A2 are the subjects of their own equations ie.( rt A1 = x * rt A/(x+y) ) and (rt A2 = y * rt A / (x+y) )
and then when you add both rt A1 and rt A2 they cross out to equal rt A


btw rt = square root
 
Last edited:

LikeaTeapot

New Member
Joined
Mar 27, 2014
Messages
11
Gender
Female
HSC
2014
You didnt have to use the A = absinC formula, but yeah they end up crossing out.

you just had to rearrange it so that rt A1 and rt A2 are the subjects of their own equations eg. ( rt A1 = x*rt A/(x+y) )
and then when you add both rt A1 and A2 they cross out to equal rt A


btw rt = square root
Yeah I did that for the second bit. I used the formula for the first bit
 

photastic

Well-Known Member
Joined
Feb 11, 2013
Messages
1,848
Gender
Male
HSC
2014
MIF style questions everywhere. This year was definitely easier than last years. And Carrotsticks and Trebla seriously helped me with their hard exam :)
 

avi888

Member
Joined
Feb 4, 2013
Messages
80
Location
Sydney
Gender
Male
HSC
2014
Uni Grad
2018
What was the answer to the first mc? just in case lol
 

sramisetty

New Member
Joined
Dec 7, 2012
Messages
4
Gender
Undisclosed
HSC
2014
btw was the coordinates of P (1/2 , e)?
Yeah, that's what I got, although after walking out of the exam.

Kept substituting the gradient instead of the full equation and getting:
2e^2x=e^2x, so
2 = 1

I don't know what I was thinking...
I'm bitter. Not sure that it should've been worth 3 marks, it was fairly straightforward.
 

trungduong12

Active Member
Joined
May 8, 2014
Messages
543
Gender
Male
HSC
2014
Yeah, that's what I got, although after walking out of the exam.

Kept substituting the gradient instead of the full equation and getting:
2e^2x=e^2x, so
2 = 1

I don't know what I was thinking...
I'm bitter. Not sure that it should've been worth 3 marks, it was fairly straightforward.
Lol
Me did the same
Up to that bit too !!!

>___<


Sent from my iPhone using Tapatalk
 

trungduong12

Active Member
Joined
May 8, 2014
Messages
543
Gender
Male
HSC
2014
MIF style questions everywhere. This year was definitely easier than last years. And Carrotsticks and Trebla seriously helped me with their hard exam :)
Can u upload answer for q15 and 16???



Sent from my iPhone using Tapatalk
 

nat2609

New Member
Joined
Aug 6, 2013
Messages
29
Gender
Female
HSC
2014
Very relieved and happy that exam is over. Reading your comments makes me wonder if I got anything right... I was pretty nervous going into that because math is my worst subject :( Luckily I do 12 units!
 

Users Who Are Viewing This Thread (Users: 0, Guests: 3)

Top