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• Today, 09:33
Rereading the problem statement, I think we can deduce the following: $$a_{11}=a_{22}=a_{33}=0$$ since it is given that the particle makes a...
3 replies | 66 view(s)
• Today, 06:31
$m>r$ holds because by definition of $r$, $m=rd$ and by assumption $d>1$. But I don't see where $s>1$ is used in the proof. It can happen, for...
1 replies | 24 view(s)
• Today, 06:20
If $=$, then $x$ can be canceled and we have $i=j$.
1 replies | 25 view(s)
• Today, 01:48
We could likely model this with a function of the form (which comes from Newton's Law Of Cooling): f(t)=c_1e^{-kt}+350 Since we know $f(0)=70$,...
1 replies | 37 view(s)
• Today, 01:01
My solution: Consider the objective function: F(A,B,C)=\sin(A)+\sin(B)+\sin(C)-\cos(A)-\cos(B)-\cos(C) Subject to the constraint: ...
2 replies | 64 view(s)
• Yesterday, 23:35
Let's look at the behavior of the solutions near the equilibrium solution $y=3$. Suppose we have: y(0)=2.9 Then we see: y'<0 And for:
3 replies | 56 view(s)
• Yesterday, 18:55
Hi jerryd! Welcome to MHB! ;) It appears we're applying the angle sum identity for the cosine: \cos(\alpha - \beta) = \cos\alpha \cos\beta +...
2 replies | 39 view(s)
• Yesterday, 18:35
Yep. And more precisely, surjective means that for every y there has to be at least one x.
7 replies | 87 view(s)
• Yesterday, 16:22
Okay. For the record, it seems that $P(A)\setminus B$ contains elements that are integers, but $P(A)$ is supposed to only contain sets doesn't it?...
7 replies | 87 view(s)
• Yesterday, 15:32
Hey FallArk! (Smile) If I understand correctly, we're talking about something like this: \begin{tikzpicture} %preamble...
7 replies | 87 view(s)
• Yesterday, 10:22
Hi Umar! ;) If I'm not mistaken $a_{31}$ is the probability that the quantum state shifts from state 1 to state 3? (Wondering) Then $a_{21}$ is...
3 replies | 66 view(s)
• February 24th, 2017, 11:34
3 replies | 76 view(s)
• February 24th, 2017, 11:28
There's no need to link to the commercial site you used. Thanks! :D
3 replies | 93 view(s)
• February 24th, 2017, 00:26
Let's find the $p$th term. I think what I would do is set: \frac{n(n+1)}{2}=p Now solve for $n$... n(n+1)=2p
1 replies | 50 view(s)
• February 23rd, 2017, 22:15
Perhaps you meant how can we derive this formula. Let's begin with the definition of average acceleration: \overline{a}=\frac{\Delta v}{\Delta...
4 replies | 66 view(s)
• February 23rd, 2017, 20:43
I made a mistake in my above post...the IVP should be: \displaystyle \d{F}{t}=2-\frac{5F}{4(50-t)} where $F(0)=0$. So, this leads to: ...
7 replies | 118 view(s)
• February 23rd, 2017, 16:33
I would let $F(t)$ be the amount of fertilizer in the tank at time $t$. From the problem statement, we get the following IVP: ...
7 replies | 118 view(s)
• February 23rd, 2017, 14:31
I don't follow...it's already in the form we want to give us the acceleration. :D
4 replies | 66 view(s)
• February 23rd, 2017, 14:28
The kinematic formula you want is: \overline{a}=\frac{v_f^2-v_i^2}{2\Delta x}
4 replies | 66 view(s)
• February 23rd, 2017, 02:40
Our goal is to make MHB stand out as much as we can from our competitors by offering features you just don't see anywhere else. If we were to package...
3 replies | 107 view(s)
• February 23rd, 2017, 02:35
MarkFL replied to a thread Tapatalk... in Chat Room
Personally, I don't think Tapatalk is ready for vBulletin, much less sites using $\LaTeX$. From what I've gathered, many vBulletin admins refuse to...
4 replies | 89 view(s)
• February 23rd, 2017, 01:29
MarkFL replied to a thread Tapatalk... in Chat Room
I'd be happy if Tapatalk didn't lazily bypass most vBulletin PHP plugin hooks. (Giggle)
4 replies | 89 view(s)
• February 22nd, 2017, 12:54
The scale along the $x$ line is not clear from the picture, so it is impossible to say whether this is the graph of $y=x/2+3$.
5 replies | 146 view(s)
• February 22nd, 2017, 04:08
Your solution to the given IVP isn't correct...we are given: \d{y}{x}=9x^8e^{-x^9} where y(0)=8 \int_{y(0)}^{y(x)}\,du=\int_0^x...
1 replies | 63 view(s)
• February 21st, 2017, 23:42
Hello, MHB Community! (Wave) We are pleased to announce a new method for embedding Desmos calculators in your posts, which we hope you will find...
3 replies | 107 view(s)
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### 9 Visitor Messages

1. Would it be possible if you helped me on a thread in the Trigonometry Forum? I am still stumped.
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I think if you ask for the proof of FLT for n = 4 in a different thread it would be better as it would be off-topic on the current thread. If you post it as a separate question, I'd be more than willing to answer to it.
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