1) Very very sorry to Kristin, Kang Yan, Michelle and Bing Jue for not bringing the file, these are the questions for TIER C, please do it on a piece of fullscap paper and submit it by tomorrow. Thank you.

TIER C:

Q5) Given that the roots of the equation 2x² - 6x - k = 0 differ by 5, find the value of k.

Q6) Find the value of k for which x² + 4x + (1 + k)² = 2kx has equal roots.

Q7) Given that the straight line y = 2x + k is a tangent to (i.e. it meets the ellipse at one point) the ellipse x² + y² = 9, find the possible values of k.

2) To 208, please submit Homework 2 by tomorrow as Mr Ingham wants to collect it, thank you.

3) To Kristin and Jun Hao, you will be presenting a keynote tomorrow but there nothing much to prepare actually :D, other detail will be given to you next time (Hint: TDD 2011).

JingHeng ((Your Maths Rep. (Again)) and (NE Comm Member (Again)))

2/1/2011

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