• Want to help us with this year's BoS Trials?
    Let us know before 30 June. See this thread for details
  • Looking for HSC notes and resources?
    Check out our Notes & Resources page

Curve sketching (1 Viewer)

vice lord

New Member
Joined
Sep 28, 2009
Messages
19
Gender
Male
HSC
2009
Hey wen sktching the absolute value of sin(x) for example is it sharp pts at intercepts or tp.. same q. fir f(x)^2
 

mitchy_boy

blue
Joined
Jun 8, 2009
Messages
1,464
Location
m83
Gender
Male
HSC
2010
I just sketched y=|sin(x)| using graphmatica and the sharp points seem to be at the x axis. I hope that's answering the question.
 

mitchy_boy

blue
Joined
Jun 8, 2009
Messages
1,464
Location
m83
Gender
Male
HSC
2010
Yeh download graphmatica vice lord, just google graphmatica,it really helps you understand things when they're a little iffy.
 

vice lord

New Member
Joined
Sep 28, 2009
Messages
19
Gender
Male
HSC
2009
Yeh ill download graphamatica now thx alot for ur help...Btw how bout the sin(x)^2 curve?
 

ninetypercent

ninety ninety ninety
Joined
May 23, 2009
Messages
2,148
Location
Sydney
Gender
Female
HSC
2010
yeah I lost a mark because my y = l cosx l graph wasn't sharp in the x intercepts
 

annabackwards

<3 Prophet 9
Joined
Jun 14, 2008
Messages
4,670
Location
Sydney
Gender
Female
HSC
2009
"I'm using the FF addon Leechblock to block BoS 22-7 until 4th of Nov, so I won't be on much. Study hard"

yeah...:hammer:
I am, 22-7 aka 22 hours 7 days a week.

So i'm on from 1200-1300 and 1800-1900 only :p
 

untouchablecuz

Active Member
Joined
Mar 25, 2008
Messages
1,693
Gender
Male
HSC
2009
y=(sinx)2=(f(x))2

dy/dx=2f'(x)f(x)

thus the x coordinates of y=f(x) become x coordinates of turning points for y=(f(x))2

also, the x coordinates of the original turning points of y=f(x) remain to be the x coordinates of the turning points of y=(f(x))2
 

The Nomad

Member
Joined
Oct 11, 2009
Messages
123
Gender
Male
HSC
2010
Hey wen sktching the absolute value of sin(x) for example is it sharp pts at intercepts or tp.. same q. fir f(x)^2
Go study and stop posting on BOS!

No really, I'm going to punch you when I see you :cool:
 

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

Top