• Yesterday, 13:06
Ackbach replied to a thread vector algebra in Geometry
(b) If you write out the formula for the dot product, what do you get? Now compare that with the RHS. What can you conclude? (c) Again, I would...
2 replies | 38 view(s)
• Yesterday, 06:59
Hello and welcome to MHB! (Wave) We ask that our users show their progress (work thus far or thoughts on how to begin) when posting questions....
1 replies | 33 view(s)
• Yesterday, 06:16
Yes. Sorry. I meant sine. Fixed in my previous post.
4 replies | 76 view(s)
• Yesterday, 02:52
Thanks GJA ... Appreciate your help ... Peter
3 replies | 45 view(s)
• Yesterday, 02:33
yes because at t = 0 it is not defined and at all other t it is defined
1 replies | 26 view(s)
• Yesterday, 01:55
MarkFL replied to a thread Domain...2 in Pre-Calculus
No factor in the denominator can be zero, and nothing under a square root radical can be negative...so this leads to: t-1\ne0 0<t What do...
1 replies | 27 view(s)
• Yesterday, 01:47
I would write: y=\frac{2x}{x-1}=\frac{2x-2+2}{x-1}=\frac{2(x-1)+2}{x-1}=2+\frac{2}{x-1} We see this will have a horizontal asymptote at $y=2$,...
1 replies | 29 view(s)
• Yesterday, 01:31
Let's look at a definition: |u|=\begin{cases}u, & 0\le u \\ -u, & u<0 \\ \end{cases} Can you see that we must have: 0\le|u| ?
2 replies | 46 view(s)
• March 19th, 2018, 22:43
I am reading "The Basics of Abstract Algebra" by Paul E. Bland ... ... I am currently focused on Chapter 3: Sets with Two Binary Operations:...
3 replies | 45 view(s)
• March 19th, 2018, 22:30
Yes, and as Wilmer was pointing out, you would likely want to use the binomial theorem. If you raise both sides to the 5th power, you get: ...
10 replies | 106 view(s)
• March 19th, 2018, 21:56
You're being asked to find an area, and in essence, you're doing so by adding up a bunch of vertical lines, the length of which are determined by the...
5 replies | 54 view(s)
• March 19th, 2018, 21:48
To follow up, we get: \d{x}{t}=\frac{\d{y}{t}\left(x-12y^2\right)}{9x^2-y} Plugging in the given values, we find: ...
4 replies | 52 view(s)
• March 19th, 2018, 21:07
That's already included in the "top curve minus the bottom curve." :)
5 replies | 54 view(s)
• March 19th, 2018, 17:00
Hi karthikS, welcome to MHB! Can it be that you mean the angle of the line with the X-Z plane? Respectively the angle with the Y-Z plane?...
4 replies | 76 view(s)
• March 19th, 2018, 16:40
Hi Alexis87, It looks all correct to me. For clarity I would just add a final sentence saying that therefore f(x+c) is reducible, which is a...
1 replies | 40 view(s)
• March 19th, 2018, 09:46
Let's first look at the bounded region: And so the area is: A=\int_0^3 (-x^2+6x)-(x^2-2x)\,dx=2\int_0^3 -x^2+4x\,dx=2\left_0^3=2(18-9)=18 ...
5 replies | 54 view(s)
• March 19th, 2018, 08:38
To follow up, the washer method gives us: V=\pi\int_{x_1}^{x^2} R^2-r^2\,dx The volume of an arbitrary washer is: ...
3 replies | 82 view(s)
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1. Hello and welcome back to MHB, mathmaniac!

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On Behalf Of MHB's Staff,

MarkFL.
2. Hello and welcome back to MHB, mathmaniac!

We are happy to see that you have returned, and we look forward to your continued participation here!

On Behalf Of MHB's Staff,

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