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Apr
28
revised Prove that the product of two invertible matrices also invertible
added latex
Apr
28
revised The area of trapezium is given by $A=(a^2-x^2)(x+a)$. Find x for the area to be a maximum and find A max.
fixed latex, also this is not abstract algebra.
Apr
28
revised Dimension of Algebraic Variety
added latex.
Apr
28
revised Proving a pseudo prime
fixed latex.
Apr
22
revised f(x) is a function such that $\lim_{x\to0} f(x)/x=1$
Improved latex.
Apr
11
revised How to prove $|x-y|\le \delta\lor |x^2-y^2|\gt \epsilon$ with the following condition?
Uses more standard epsilon and delta as opposed to e and d.
Apr
10
revised Solve the PDE $\frac{\partial u}{\partial t}+\frac{\partial u}{\partial x}=x$ using Laplace transform in $t$
added latex.
Mar
22
revised Finding the value of a trigonometric function given the value of $\tan(\alpha)\tan(\beta)$
Converted stuff to latex.
Jan
13
revised integral problem - what is the quickest solution?
Placed equation in center of the page.
Sep
24
revised Dot product of two vectors with respect to their sum and difference.
edited title
Sep
11
revised When to use which derivative expanded function?
Fixed formulas.
Aug
21
revised Area of $A'B'C'$ is to area of $ABC$ is $\frac{(m-n)^2}{m^2+mn+n^2}$
Fixed title latex.
Jun
2
revised Polynomial in several variables over $GF(2)$
Improved legibility.
Jun
2
revised If I invert the argument, should I invert the constants in the equation?
Made it easier to read.
May
8
revised Help show the following isomorphism cannot exist.
edited body
May
8
revised Help show the following isomorphism cannot exist.
added 4 characters in body
Feb
18
revised Where does the function $f(x) =\Big[\frac{1}{2}*x\Big]$ contain discontinuities, left or right continuous?
deleted 98 characters in body
Feb
18
revised Does my proof about convergent sequences look ok?
Added latex.
Feb
17
revised How do I put this differential equation into mathcad 11
Added equation.
Feb
11
revised Integration of a differential that is a function of itself.
added latex for ease of reading.