Hi,
I have recently tumbled upon ur forum post
http://politics.sgforums.com/forums/2297/topics/331571
I would like to ask how do you solve for part (j)?
From Jundead
To solve the part
(j),
(1) we will use the concept
curve 1 = curve 2 at the intersecting point
(2) Since the question says
the cubic equation is satisfied by the x values of
the
intersecting of the curve x2 -
x -
5 and the curve 1/x ie we can equate the
two
curves (due to the intersecting points of
x).
Hence,
the required cubic equation is
x^2 - x - 5x =
1/x
x^3 -
x^2 - 5x =
1
x^3 -
x^2 - 5x - 1 =
0
Ver sorry for the late reply as I have not been visiting the
sgforums E.Maths forum regularly.
Thank you for your kind attention.
Regards,
ahm97sic