Recent content by StudentofSci

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    Is one able to delete their posted topic?

    This seemed like the most appropriate place to put this question. My apologies if it is not.
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    Is one able to delete their posted topic?

    If yes how so? Thank you
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    Find an equation in standard form for the conic. Calculus II

    Homework Statement Find an equation in standard form for the conic , a)Ellipse: vertices (0,0) & (0,8), foci (0,2) & (0,6). b) hyperbola: vertices (-3,0) & (3,0), asymptotes y= ±2x Homework Equations Ellipse: (x-h)^2/b^2+(y-k)^2/a^2=1, vertices ± a from center, foci ± c from center...
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    Indentify the typer of conic section and its vertices&foci. Calc II

    Homework Statement Identify the type of conic section whose equation is given as y^2+2y=4x^2+3 Also find its vertices and foci (y-k)^2/a^2-(x-h)^2/b^2=1 Homework Equations I believe when you have x&y ^2 in an equation it can be either an ellipse or a hyperbola but if the signs are...
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    Please help understanding what the question is asking Calc II (Conics)

    Thank your reply. However, I do not think that equation is relevant to this problem. This being because the only information I am given is the vertex aside from that. The vertex is in the form (h,k). Other than that x is given to me if the "vertical axis" is actually the "vertically axis of...
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    Please help understanding what the question is asking Calc II (Conics)

    Homework Statement Find an equation is standard form for the conic that satisfies the given condition. Parabola: vertex (2,3), vertical axis passing through (1,5) Homework Equations vertex= (h,k) The Attempt at a Solution I know how to solve a problem like this if I was given the...
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    Please help elimante the parameter to find a rectangular equation.

    Homework Statement Elimnate the parameter to find a rectangular equation of the curve. x=sin t, y= csc t Homework Equations I believe trignometric identities are relevant to this problem. cscx=1/sinx The Attempt at a Solution csc x =1/ sin x thus y=1/x Is this the answer...
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    Please help determine the tangent of the parametric equation.

    Homework Statement A curve C is defined by the parametric equation x=t^2, y=t^3-3t. a) show that C has two tangents at the point (3,0) and find their equations. b) find the points on C where the tangent is horizontal Homework Equations y-y1=m(x1-x), (dy/dt)/(dx/dt)=m, when dy/dt=0...
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    Help finding the what the limit= as n approaches infinity please.

    Homework Statement The lim as n approaches infinity for 10^n/(n+1)! Homework Equations ? The Attempt at a Solution Normally when there's is a problem with a number n raised to a power over another number n raised to a power I take the ratio of the two to get what the limit...
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    Determining the direction of electric field flow and the sign on potential difference

    Homework Statement A resistor made from a shell with an inner radius r1 and an outer radius r2 hasa conductivity sigma. The current flows radially outward. 1.What direction does the E field point in. 2. Is the potential difference V2-V1 positive or negative. Homework Equations None...
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    Determine Va-Vb and the magnitude/direction of Ea-Eb

    Yes that's what I figured. I just thought I ought to be sure that solving it symbolically didn't take me down some other path. Thank you
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    Determine Va-Vb and the magnitude/direction of Ea-Eb

    Homework Statement Point "a" is "Y" meters south of a -Q C Point Charge and point "b" is "X" meters east of the charge. 1. Determine Va-Vb 2.Determine the magnitude of Ea-Eb 3.Determine the direction of Ea-Eb My problem with solving this question is that it is purely conceptual. If...
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