- Messages
- 1,824
- Reaction score
- 949
- Points
- 123
out of 75? :O
YEA! .. i am not that bad in maths to get 60% -,-
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
out of 75? :O
agreed ..I don't know why people do that .. Honestly getting underestimated is way better than having expectations and not being able to meet them So I am good.
make "y" as subject in BOTH cases ...and equate the two ... and arrane in form of quadratic eqn ... finally use b^2-4ac=0 since it intersect and find "K" value
for line to be tangent it should just cut the curve at one point, in other words just touch the curve.
Equate both the equations.. you will have a equation in terms of k..
b^2 -4ac = 0 for the curve to be intersecting at only one point..
you will get the value of k.
I tried that, I'm pretty sure I'm using b^2-4ac wrong.
This is the equation I'm getting when they're equated: y^2+2k-4y-13 = 0 ..
What's A , B and C... 4 terms. I forgot how to do these x_x
You need to take the equation in terms of X.
MECHANICS ....
can any one give my the idea of how to do this question ... i dont have nothing to do !
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w07_qp_4.pdf
q7 (ii) and (iii) ????????
I tried that, I'm pretty sure I'm using b^2-4ac wrong.
This is the equation I'm getting when they're equated: y^2+2k-4y-13 = 0 ..
What's A , B and C... 4 terms. I forgot how to do these x_x
its easy if you have done part (i)
in b2-4ac put these values from ur eq
(2k-4)^2-4(1)(-13)
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now