Ok just quickly what happens in this case
A + B = 3
-2A - 2B = -2
Both terms disapear when I add them together.. what do i need to do to get the values of A and B??
2A +2B = 6
-2A -2B = -2
0 = 4
Follow Math Help Forum on Facebook and Google+
What was the original question?
Divide the second equation by -2 and we have:
Now think about this logically. How can two numbers add up to 3 and 1 at the same time?
I was doing partial fractions,
int (3-2x) / (x^2-4x+4)
int (3-2x) / (x-2)(x-2)
Numerator: (A+B)x + (-2A-2B)
I'm guessing I've done something wrong here..
You have to combine the linear factors in the denominator into a single power:
Then apply partial fraction decomposition:
Try it now.
Ah right I get it, thanks alot!!
View Tag Cloud