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Wilmer
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Today,
21:33
MarkFL
replied to a thread
15.1.25 Evaluate the following double integral over the region R
in
Calculus
The region $R$ is a rectangle having the vertices: (0,1),\,(1,1),\,(1,-1),\,(0,-1) One way we can compute the volume is: ...
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4 replies | 53 view(s)
Today,
19:41
MarkFL
replied to a thread
logs
in
Pre-Algebra and Algebra
Okay, we are given: \ln\left(x-\frac{1}{x}-3\right)=2 Converting from logarithmic to exponential form, we have: x-\frac{1}{x}-3=e^2 ...
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1 replies | 15 view(s)
Today,
15:26
MarkFL
replied to a thread
15.1.25 Evaluate the following double integral over the region R
in
Calculus
As for the $\LaTeX$, look under the "Calculus/Analysis" section of our Quick $\LaTeX$ tool. You will find it, which gives the code: ...
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4 replies | 53 view(s)
Today,
10:48
MarkFL
replied to a thread
The Fonz and Geometry
in
Chat Room
Yes, and I was just pointing out that there can be other reasons a student fails besides lack of innate ability to understand the material, or an...
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5 replies | 63 view(s)
Today,
10:18
MarkFL
replied to a thread
The Fonz and Geometry
in
Chat Room
If a child's parents consistently put a child down, then I think this can have negative consequences on the child. I think there are a great many...
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5 replies | 63 view(s)
Yesterday,
23:08
MarkFL
replied to a thread
Students Fear Word Problems
in
Chat Room
I disagree with this...I think it is the societal attitude that it's okay to fail at math that is part of the problem. Someone says to their friends,...
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9 replies | 94 view(s)
Yesterday,
22:23
MarkFL
replied to a thread
Probability of 3 people ending up on same team?
in
Basic Probability and Statistics
If we have 2000 people, 300 of which are women, then the probability that all 300 women will be on the same team is given by: P(A)=\frac{{1700...
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5 replies | 51 view(s)
Yesterday,
22:01
MarkFL
replied to a thread
Probability of 3 people ending up on same team?
in
Basic Probability and Statistics
I think your second method is correct. Suppose we call the teams $X$ and $Y$...and now we need only look at one team, so let's look at team $X$. If...
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5 replies | 51 view(s)
Yesterday,
19:04
MarkFL
replied to a thread
Solar Eclipse 2017
in
Chat Room
Yesterday during the big event, we had pervasive heavy cloud cover and intermittent rain. Today, sunny and clear all day. Story of my life...(Giggle)
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8 replies | 233 view(s)
August 20th, 2017,
01:29
MarkFL
posted a
visitor message
on
Peter's
profile
Hey Peter! (Wave) I edited your post to remove the duplicate content. Sorry for the late reply, I was busy "powering through" a tedious 3 hour...
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August 17th, 2017,
02:10
MarkFL
replied to a thread
231.12.3.65 Determine the smallest distance between a point and a line
in
Calculus
Small quibble...axis of symmetry is: t=-\frac{1}{105} So, since the parabola opens up, the vertex is a minimum, so the minimum distance will be...
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8 replies | 174 view(s)
August 17th, 2017,
00:59
MarkFL
replied to a thread
231.12.3.65 Determine the smallest distance between a point and a line
in
Calculus
For a parabola of the form: f(x)=ax^2+bx+c We know the axis of symmetry is at: x=-\frac{b}{2a} So, for:
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8 replies | 174 view(s)
August 16th, 2017,
22:42
MarkFL
started a thread
Welcome Threads
in
vBulletin Products
Overview: This product is designed to auto-post a welcome thread for all new users once they have completed all verifications, and/or returning...
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0 replies | 28 view(s)
August 16th, 2017,
21:58
MarkFL
replied to a thread
231.12.3.63 Determine the smallest distance between point and line
in
Calculus
Isn't this question a duplicate of the following? 231.12.3.65 Determine the smallest distance between a point and a line
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1 replies | 45 view(s)
August 14th, 2017,
01:09
MarkFL
replied to a thread
Solar Eclipse 2017
in
Chat Room
I was just reading about how tree leaves can form "pinhole cameras" and the eclipse can be seen in their shadows:
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8 replies | 233 view(s)
August 13th, 2017,
14:03
MarkFL
replied to a thread [SOLVED]
12 DeMoivre's theorem
in
Trigonometry
In case you're wondering how I obtained the following factorizations: 1+3i=(1+i)(2+i) 2-2i=-(1+i)^3 What I did for the first was to write: ...
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13 replies | 275 view(s)
August 13th, 2017,
10:15
MarkFL
replied to a thread [SOLVED]
12 DeMoivre's theorem
in
Trigonometry
What definition for "complex form" were you given? That was the confusing issue for me. I am aware of rectangular, polar and exponential forms for...
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13 replies | 275 view(s)
August 12th, 2017,
22:07
MarkFL
replied to a thread [SOLVED]
12 DeMoivre's theorem
in
Trigonometry
I'm wondering if what we're supposed to do here is: 1+3i=(1+i)(2+i) 2-2i=-(1+i)^3 And so the product is: ...
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13 replies | 275 view(s)
August 11th, 2017,
10:24
MarkFL
started a thread
Usergroup Legend with Links To FAQ (vB3)
in
vBulletin Products
Overview: This product allows you to display a legend of selected usergroups in your WGO block, directly below the list of users who are online....
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0 replies | 19 view(s)
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