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logistic_guy
posted the thread
orange
in
Calculus
.
\textcolor{indigo}{\bold{Solve.}} \int \cos^n x \ dx
Sep 13, 2025
logistic_guy
posted the thread
banana
in
Calculus
.
\textcolor{indigo}{\bold{Solve.}} \int \sin^n x \ dx
Sep 13, 2025
logistic_guy
posted the thread
surface integral
in
Calculus
.
\textcolor{indigo}{\bold{Solve.}} The portion of the cone z = \sqrt{x^2 + y^2} below the plane z = 4
Sep 13, 2025
logistic_guy
posted the thread
line integral
in
Calculus
.
\textcolor{indigo}{\bold{Solve.}} f(x,y) = 2x, C is the line segment from (1,2) to (3,5)
Sep 13, 2025
logistic_guy
posted the thread
infinite series - 10
in
Calculus
.
\textcolor{indigo}{\bold{Solve.}} \sum_{k=0}^{\infty}(-1)^k\frac{6}{k!}
Sep 13, 2025
logistic_guy
replied to the thread
flow rate
.
\bold{average \ discharge \ speed} = \frac{\bold{flow rate}}{A} = \frac{0.6}{\pi\left(\frac{0.5}{2}\right)^2} = \textcolor{blue}{3.056 \...
Sep 13, 2025
S
scottbrandon
replied to the thread
Sequence containing every four-digit combination
.
Yes, it exists. It’s a De Bruijn sequence for 4-digit combinations over digits 0–9. The minimal linear string is exactly 10,003 digits...
Sep 12, 2025
Agent Smith
replied to the thread
0.999... = 1
.
I don't think 0.999... = 1 is a definition khansaheb. One assigns defs, not prove them. It seem the author of this argument wants to...
Sep 12, 2025
Agent Smith
replied to the thread
0.999... = 1
.
The argument is quite compelling
Sep 12, 2025
Agent Smith
reacted to
khansaheb's post
in the thread
0.999... = 1
with
Like
.
0.999... is defined to be equal to 1 within the standard real number system. Hence the result derived above is incorrect.
Sep 12, 2025
logistic_guy
replied to the thread
puzzle
.
\bold{OVER} \rightarrow \textcolor{darkblue}{\bold{O}} \textcolor{purple}{\huge\bold{the \ solution \ so \ far}}
Sep 12, 2025
T
tombrooks
posted the thread
wiki says eccentricity of a sliced conic section is sin(alpha)/sin(beta) without any explanation. Can someone derive this. alpha angle of cone
in
Geometry and Trig
.
wiki says eccentricity of a sliced conic section is sin(alpha)/sin(beta) without any explanation. Can someone derive this. alpha is...
Sep 12, 2025
K
khansaheb
reacted to
Dr.Peterson's post
in the thread
Anyone has truly understood the Tower of Hanoi problem's solution using recursion?
with
Like
.
What part of it confuses you? Why do you think it might not work?
Sep 12, 2025
K
khansaheb
replied to the thread
0.999... = 1
.
0.999... is defined to be equal to 1 within the standard real number system. Hence the result derived above is incorrect.
Sep 12, 2025
logistic_guy
replied to the thread
partial differential equation - 9
.
The next part is very hard to solve. \frac{dx}{x} = \frac{dw}{w - a\sqrt{w^2 - x^2 - y^2}} We have to find a way to get rid of the...
Sep 12, 2025
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