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 1d revised Show that $\bar A = A \cup [(0,0), (0,1)]$ improved math formatting 1d revised Graph connected does not imply $f$ is continuous edited body Apr12 revised Product of subgroups which is not a group - infinite case fixed spelling Apr12 revised Show that $2^{105} + 3^{105}$ is divisible by $7$ Improved formatting Apr11 revised submonoid of monoid. added 106 characters in body Apr11 revised If we toss one coin twice, what would be the Sample Space? Added explanation of example 7 Apr11 revised If we toss one coin twice, what would be the Sample Space? Added explanation of example 7 Apr11 revised If we toss one coin twice, what would be the Sample Space? fixed typo Apr9 revised Find the values of $a$ and $b$ that make $f$ differentiable at $x=0$ LaTeX formatting Apr9 revised A pedagogical proof that 9's can be ignored when calculating digital roots added 11 characters in body Apr9 revised Is there a name for the integral used to define square integrable functions? made the title more descriptive Apr2 revised Why can one expect that $n\cdot p$ elements complete the test? removed the wrong assertion that independence is necessary Mar20 revised Is there a Linear Map to represent transpose? Added how the transpose may be written as more general linear function of the matrix Mar7 revised Subinterval of an interval that has exponential distributed length rolled back to a previous revision Nov4 revised Trace norm identity (in bra-ket notation) added 29 characters in body Oct4 revised Is the limit of the dual spaces the dual space of the limit? Added clarification that I mean the algebraic dual space Sep14 revised Write the Fourier series to $f(t)=|\sin t|$ Improved math formatting Sep7 revised Does $V_1,V_2,V_3$ span $R^4$ Fixed LaTeX syntax for matrices Sep6 revised Find the domain of the function $f(x) =\frac{x+4}{x^2-9}$ TeXified Apr21 revised Plotting a region in $3D$ space added 74 characters in body