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• Today, 02:18
1. IVT and FVT would apply to any transfer function where the poles are located in the left-hand plane (negative real parts) and not more than one...
1 replies | 34 view(s)
• Yesterday, 22:53
I do not see any problem with defining the notion of an irreducible in an arbitrary ring. Though we may not get any nice theorems concerning...
1 replies | 45 view(s)
• Yesterday, 22:45
$$a\,\, sequence:a_1=\dfrac {1}{3}\,\, and \,\, \,\, a_{n+1}=a_n^2+a_n,\,\, n=1,2,3,----2000\\ find \,\, the \,\, integer \,\, part\,\, of... 0 replies | 24 view(s) • Yesterday, 11:04 MarkFL replied to a thread Hi everyone! in Introductions Hello and welcome to MHB, Raisa! (Wave) 3 replies | 69 view(s) • Yesterday, 10:02 caffeinemachine replied to a thread Hi everyone! in Introductions Hey Raisa! I am currently a PhD student in mathematics, but I was also a mechanical engineering undergrad before I switched to math. I would say that... 3 replies | 69 view(s) • Yesterday, 03:13 Here is this week's POTW: ----- Find the exact value for the real root of the equation x^3+3x-2=0. ----- Remember to read the POTW... 0 replies | 51 view(s) • Yesterday, 02:59 Congratulations to the following members for their correct solution::) 1. kaliprasad 2. lfdahl Honorable mention goes to cmath123, as he has his... 1 replies | 121 view(s) • Yesterday, 00:03 greg1313 replied to a thread Rhombus question in Geometry x=\angle{B},\quad2x+4(180-2x)+120=360\implies x=80^{\circ}\implies\angle{BAD}=100^{\circ} 3 replies | 55 view(s) • February 18th, 2017, 23:54 It's just seven. You're squaring the RHS which introduces an extraneous solution. 3 replies | 57 view(s) • February 18th, 2017, 20:12 Yes.$$ = = = 1$$3 replies | 59 view(s) • February 18th, 2017, 19:34 Hi FallArk! The$$ notation indicates the floor function. That is, rounding down to the nearest integer below $x$. Btw, I prefer the notation...
3 replies | 59 view(s)
• February 18th, 2017, 17:49
I like Serena replied to a thread [SOLVED] How to prove continuity? in Analysis
Hi FallArk! ;) Let's take the definition of continuity into account: $$\lim_{x\to c} f(x) = f(c) \ne 0$$ This means that for any $\epsilon>0$...
4 replies | 70 view(s)
• February 18th, 2017, 02:29
MarkFL replied to a thread 231.14.88 3d surface in Calculus
Multiplying through by $9+6x-8y$ and distributing the $26$, we obtain -x^2-y^2+z^2=156x-208y+234 -x^2-156x-y^2+208y+z^2=234 ...
3 replies | 54 view(s)
• February 17th, 2017, 17:44
Simplex yes. And no, we didn't need to figure out the configurations - they were given. At best it helps a bit to understand the problem statement....
11 replies | 132 view(s)
• February 17th, 2017, 16:05
Looks good. Does that mean that we're done? (Wondering)
11 replies | 132 view(s)
• February 17th, 2017, 15:20
Yes and yes. What would the objective function be? (Wondering)
11 replies | 132 view(s)
• February 17th, 2017, 14:11
Yes and yes. How many plates A and B do we need? (Thinking)
11 replies | 132 view(s)
• February 17th, 2017, 07:04
$hint:$ $if \,\,a=1\,\, then \,\,b=?$ $if \,\,a>1\,\, then \,\,no \,\,solution.\,\, why ?$
1 replies | 80 view(s)
• February 17th, 2017, 02:59
We have $2010 y + 2010 x = xy$ or $xy - 2010x - 2010y = 0$ or $(x-2010)(y-2010) = 2010^2= 2^2 * 3^2 * 5^2 * 67^2$ the above has...
2 replies | 103 view(s)
• February 17th, 2017, 01:20
My attempt: Given the relation: \ Both $x$ and $y$ must be greater than $2010$.
2 replies | 103 view(s)
• February 17th, 2017, 01:20
Can't we fit another 300x700 in the scrap at the right of size 300x1000? (Wondering)
11 replies | 132 view(s)
• February 16th, 2017, 20:51
Here is this week's POTW: ----- Prove that there is a constant $C$ such that, if $p(x)$ is a polynomial of degree $2017,$ then \ ----- ...
0 replies | 43 view(s)
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