Jhannybean
Name:
Jhan
School:
About:
Currently a sophomore in college working towards my B.S in General Biology.
I've really come to love OpenStudy :) It has taught me a lot of really cool techniques I never knew I could do, and I get the opportunity to share these with other people :D
Subjects that interest me are Biology, Chemistry and Mathematics (particularly Calculus and subtopics in algebra - completing the square)
Turned Emerald 11/28/14. Day after Thanksgiving! Woo!
And turned 99 on 12.20.14 :)
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Questions Asked
Jhannybean:
Group Title
Just curious about this one: how would I solve \(xy'+y\ln(x) = x\ln(y)\)?
updated yesterday
26 replies
No Medals Yet
Mathematics
Jhannybean:
Group Title
A proton is released from rest in a uniform electric field of magnitude \(1.08 \times 10^5 \frac{N}{C}\) . Find the speed of the proton aft…
updated 12 days ago
30 replies
2 Medals
Mathematics
Jhannybean:
Group Title
\[\int \frac{dx}{\sqrt{1+x^2}}\]
updated 19 days ago
34 replies
8 Medals
Mathematics
Jhannybean:
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Solve:\[\frac{dy}{dx} =\frac{1+y^2}{1+x^2}\]
updated 20 days ago
137 replies
9 Medals
Mathematics
Jhannybean:
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\[x^2-(ab-14)x+a^{\log_2(b)}-32=0\]Two roots of a quadratic equation for \(x\) are 16 and 2 where \(0 \lt a \lt b\). What is the value of \(…
updated one month ago
108 replies
7 Medals
Mathematics
Jhannybean:
Group Title
Surface Integrals for fun. \[\int\int_S xyz dS\] \(S\) is the cone with parametric equations \(x=u\cos(v)~,~ y=u\sin(v)~,~z=u~,~0\le u \le 1…
updated one month ago
32 replies
5 Medals
Mathematics
Jhannybean:
Group Title
Transformations: \(\int\int_R (x^2-xy+y^2)dA\) where \(R\) is the region bound by the ellipse \(x^2-xy+y^2=2~,~\)\(x=\sqrt{2}u-\sqrt{\frac{2…
updated one month ago
55 replies
9 Medals
Mathematics
Jhannybean:
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Just working on some practice problems. \(\int\int_R (4x+8y)dA\) where \(R\) is a parallelogram with vertices (-1,3),(1,-3) and (3,-1), (1,5…
updated one month ago
83 replies
15 Medals
Mathematics
Jhannybean:
Group Title
Is there a way to add more LaTeX symbols to OS? For example the "arc" symbol, and others?
updated 26 days ago
14 replies
1 Medal
Mathematics
Jhannybean:
Group Title
Evaluate the surface integral:\[\int\int_S x^2z^2 dS\]S is part of the cone \(z^2 =x^2+y^2\) that lies between planes \(z=1\) and \(z=3\)
updated one month ago
27 replies
3 Medals
Mathematics
Jhannybean:
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Calculus 3: Part of the surface \(y=4x+z^2\) that lies between planes \(x=0~, ~x=1~,~z=0~,~z=1\)
updated one month ago
70 replies
6 Medals
Mathematics
Jhannybean:
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Calculus 3: Finding he equation of a tangent plane to the given parametric surface at the specific point: I know how to find my partials, Ju…
updated one month ago
43 replies
5 Medals
Mathematics
Jhannybean:
Group Title
Write the equation of a plane : \[\vec r(u,v) =2\sin(u)\hat i + 3\cos(u)\hat j +v\hat k\] \(0\le v\le 2\)
updated one month ago
73 replies
6 Medals
Mathematics
Jhannybean:
Group Title
If you guys like to try out a problem.
Evaluate triple integral by changing to spherical coordinates \[\large \int\limits_0^a \int\limits_{-…
updated one month ago
69 replies
10 Medals
Mathematics
Jhannybean:
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Calculus 3: simple-ish simplification
updated 2 months ago
73 replies
6 Medals
Mathematics
Jhannybean:
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http://prntscr.com/5bbz6c @Abhisar
updated 2 months ago
3 replies
1 Medal
Mathematics
Jhannybean:
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Yay!!! Day after thanksgiving and im finally SS 90! :D
updated one month ago
118 replies
21 Medals
Mathematics
Jhannybean:
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Calculus 3: simplifying expression
updated 2 months ago
45 replies
11 Medals
Mathematics
Jhannybean:
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Calculus 3:Evaluate \[\int \int \frac{2xy}{x^2 +y^2}dxdy\] where D is the intersection of the annulus \(1 \le x^2 +y^2 \le 2\) with the seco…
updated 2 months ago
33 replies
5 Medals
Mathematics
Jhannybean:
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Calculus 3: Simplifying \[\int_{0}^{\pi/4} \int_{0}^{\pi/2} \int_{0}^{\sqrt{2}} (\rho\sin\phi \cos\theta)(\rho \sin \phi \sin \theta)\rho^2\…
updated 2 months ago
57 replies
6 Medals
Mathematics
Jhannybean:
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Calculus 3: Trying to understand how to change from the xy-pane to the uv-plane to find the equation for a transformation where sides of S a…
updated 2 months ago
58 replies
4 Medals
Mathematics
Jhannybean:
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Calculus 3: Convert \(3x^2-8xy+3y^2+4z^2=7\) using cylindrical coordinates, I just need something checked, not solved.
updated one month ago
38 replies
5 Medals
Mathematics
Jhannybean:
Group Title
Calculus 3: Description of inequalities of the solid above \(z=\sqrt{x^2+y^2}\) and below \(x^2+y^2+z^2=z\)
updated 2 months ago
87 replies
4 Medals
Mathematics
Jhannybean:
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Calculus 3: Set up limits of the integral \[\int \int \int f(x,y,z)dzdxdy\]with vertices \((0,0,0),(2,0,0), (2,1,0)\) and \((2,1,1)\)
updated 2 months ago
117 replies
11 Medals
Mathematics
Jhannybean:
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I'm not sure if this has already been talked about, but will there be more Calculus sections added in the next OpenStudy update? A section f…
updated 2 months ago
10 replies
1 Medal
Mathematics
Jhannybean:
Group Title
Calculus 3: Find volume of a solid enclosed by cone \( z= \sqrt{x^2 +y^2}\) and sphere \( x^2 +y^2 +z^2 =2\)
updated 2 months ago
60 replies
3 Medals
Mathematics
Jhannybean:
Group Title
Simplifying \[\-e^{-\ln(x)}\]
updated 2 months ago
5 replies
5 Medals
Mathematics
Jhannybean:
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Evaluate double integral 4y^3 dA bound by y = x-6, y^2 = x
updated 3 months ago
57 replies
5 Medals
Mathematics
Jhannybean:
Group Title
How can I find the values of x and y when
dz/dx = 2xe^{y^2-x^2}(1-x^2-y^2) = 0…
updated 3 months ago
49 replies
6 Medals
Mathematics
Jhannybean:
Group Title
if \(z=xe^{xy}\) and \(x=3st\) and \(y=t^2-s\) find \(\large \frac{\partial z}{\partial s}\) at \((3,0)\)
updated 3 months ago
19 replies
5 Medals
Mathematics
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