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Frederick Koh

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.

Scott A Wilson

Any algebraic question you've got. That includes question that are linear, quadratic, exponential, etc.


Any questions on High School Algebra, College Algebra, Abstract Algebra. I can help with word problems, solving equations, trigonometry, inequalities, Gaussian Elimination, Linear Algebra, groups, fields, you name it!

Richard J. Raridon

I can answer questions in physics, chemistry, algebra, trigonometry

Abe Mantell

On Vacation
returns 12/25/2016
Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions!

Recent Answers

2016-11-18 Algebra:

Hi Jimmy,          The problem you suggested is rather interesting. Trying to crack things apart by brute force manipulation will probably not get you anywhere since it involves both conventional algebraic

2016-10-22 Algebra-Compound Inequalities:

An inequality is written if one side is known to be less than the other.    For example, 1<3, which is read as, "one is less than three."    To see this, subtract 1 from both sides and you get 0 < 2,

2016-09-18 Finding y-intercept of quadratic without knowing equation:

Once we know the parabola in the form of y = ax˛ + bx + c, it can be done.  The y intercept is found by putting x=0, and the result is y = c.    To get these points, take the values as (x1,y1), (x2,y2)

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