Ok thanks! I have another question..
Sketch the curve
y^2 = x(x-1)
Here is how I approached it:
Firstly, y = +- sqrt(x(x-1))
so the domain would be
x <= 0 and x >=1
And after differentiating, there turns out to be no stationary points
x intercepts at 0,1
y = 0
Now here's the thing; I don't...
Hello,
How do I sketch:
1. y = f(|x|)
2. y = |f(x)|
3. |y| = f(x)
For the function:
http://imgur.com/P2xfTr5
I have a couple things that need clarification:
*Is it better to find the equation of the function and somehow continue accordingly? or is it better to recognise the nature of each...
Hello,
I have been relying on my tutor to learn ahead of my school content, but there is now a two week break (school holidays)
Any suggestions on effective methods to self-learn content, specifically 4U? I think i'm more of a visual learner (diagrams, step-by-step solutions etc)
For some...
Mine looked like that too. If the min of the function was placed much lower, for example like this: http://imgur.com/m8fDWP5
Would that correlate to a steeper part for that quartic?
Weirdly enough, I had exactly the same question in my prelim test today, it was basically this a/x-2 + b/x-3
For the polynomial question, since it's a double root, P(1) = 0 but also P'(1) = 0
So by solving simultaneously, I got m = -68 and n = 90
If you sub the function into a graphing...
P(x) is an even function and passes through the point (1,2). What is the remainder when P(x) is divided by (x+1)?
The possible answers were
a) 0
b) -1
c) 1
d) 2
What I thought was that since P(x) is an even function, P(-1) = P(1) so the answer is 1?
Not 100% sure about this one. Any help is...
Hey, that polynomial question is quite interesting. Not 100% sure, but does the solution include P(1) = 0 and also P'(1) = 0 (since double root)
so my final answer is P(x) = 2(x-1)(-32x^3+11x^2+17x+6)
Also for the next question, do you mean (a/x+2) + (b/x-3) ?
If so, looks like an identical...
I heard daily revision is good. Probs self learn part of the yr 12 MX1 and 2 syllabus, and maybe try and finish the first "Space" topic for physics. BUT everyone is suggesting breaks instead of studying.. so...