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Algebra/Expert Profile

Frederick Koh

Singapore
On Vacation
returns 06/15/2012
Expertise

I can answer questions concerning calculus, complex numbers, vectors, statistics , algebra and trigonometry for the O level, A level and 1st/2nd year college math/engineering student.

Experience in the area

3 years helping out in a singaporean youth forum: http://forums.sgclub.com/math_help/ (under the moniker whitecorp) You can also visit my main maths website http://www.whitegroupmaths.com where I have designed "question locker" vaults to store tons of fully worked math problems. Peace.

Organizations

IEEE(Institute of Electrical and Electronics Engineers )

Education/Credentials

Former straight As A level student from HCJC (aka HCI); scored distinctions in both C and Further Mathematics B Eng (Hons) From The National University Of Singapore (NUS)

Average Ratings

  • Rating N/A
  • ( Expert Not Accept Rating)   
  • Response Time(hr) 7.1
  • Response Time(hr, last 90 days) 12.7
  • Number of Questions Today 0
  • Max Questions to be Asked in a Day 3
  • Total Questions (since joining AllExperts) 103
  • Volunteer Since 2011-11-21
  • Prestige Points N/A

Recent Answers from Frederick Koh

2012-04-23 Graph:

(a) Rewriting the line x-2y+4=0 as y= 1/2 x -2 implies the gradient of this line is 1/2.      Since the required line is perpendicular to this line, then its gradient is -1/ (1/2) =-2      (remember that

2012-04-17 mathematical induction explanation:

The idea of mathematical induction is to prove things via what is known as the domino effect.    Assume for a moment that the sum to k terms is true,  ie 1+2+3+..........+k = (k/2)* (k+1)    What would

2012-03-16 Expanding a Binomial:

I assume you are asking with regards to how to find the value of 8C6?    You can employ the following concept where nCr = nC (n-r) due to its symmetrical properties.    Hence 8C6=8C2.    So how do we find

2012-03-14 Fraction Division:

I believe that refers to the concept of multiplication of the denominator by the numerator as a step in conversion from an improper fraction to a proper fraction. Truth be told, the phrasing is rather

2012-03-13 Fraction Division:

Firstly, I think you meant 1160 divided by 297 = 3 269/297 ?    Let the first proper fraction be a b/c  and the second proper fraction be d e/c  where <b> both fractions share the

 

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