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4h
comment Show that $y_1(x) = \int_c^x f(x-t) R(t) dt$ is a particular solution of $L(y) = R$
Try applying the Leibnitz rule.
1d
comment the derivative of $\sin{x}$ is $\cos{x}$
Or even easier. put $h = z -x$ and let $\h \to 0$.
1d
answered the derivative of $\sin{x}$ is $\cos{x}$
1d
revised the derivative of $\sin{x}$ is $\cos{x}$
address minor style issues
1d
answered Calculate Effective rate of the loan
1d
reviewed Reviewed Calculate Effective rate of the loan
1d
comment Calculate Effective rate of the loan
How often is interest compounded?
1d
revised prove that if $S$ is a subspace of $V$,then $S ∩ S^\perp =\{0\}$
inserted latex
1d
answered prove that if $S$ is a subspace of $V$,then $S ∩ S^\perp =\{0\}$
2d
comment Why is $\int\limits_{\gamma} \frac{1}{z-1} \neq 2\pi i$, $\gamma = \{z : \lvert z \rvert = 1\}$?
There is a rather surly singularity at $z=1$; your curve passes right through that. All bets are off.
2d
awarded  Enlightened
2d
awarded  Nice Answer
2d
reviewed Reviewed Probability Density Function with Cumulative Distribution & Standard Deviation
2d
revised Probability Density Function with Cumulative Distribution & Standard Deviation
reset in TeX and phrased in form of quesitons.
2d
reviewed Reviewed How to handle dice probability? ie, how much more likely would 3 six sided dice give a higher sum than 3 four sided dice?
2d
answered Pseudo-Cauchy sequence
2d
comment Order Axioms: '<' or '$\leq$'?
You should adopt a convention, explicity state it, and use it.
2d
answered Confused by (cumulative) distribution function question…
2d
comment Is there a mathematical symbol for “For every element”?
For all x in A. You have it backwards.
Apr
14
answered R.V. X and Y have joint density $f(x, y) = e^{(-x-y)}$, find $P(X+Y\leq 1)$