Recent content by ammontgo

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    Why is (-1)^(2/3) undefined on calculators?

    I think your calculator maybe having trouble taking the root of a negative number?
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    Solve for t: Rearrange Equation σ=ωi*t+½α*t^2

    Quadratic Formula: [PLAIN]http://dl.dropbox.com/u/4645835/MATH/Quadratic.gif
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    Engineering How do I solve for node voltages in a circuit with complex resistances?

    The 'complex resistances' are impedences (z). where, http://dl.dropbox.com/u/4645835/MATH/Impedence.gif Mesh 1: [PLAIN][PLAIN]http://dl.dropbox.com/u/4645835/MATH/Mesh1.gif
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    Euclidean geometry proof concerning circles

    Ok. Draw these two circles on graph paper and prove that there is a 90 degree angle between PQ and the line containing the centers.
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    Finding Perimeter/Circumference of part of a circle

    I imagine it as a larger circle around a smaller circle. The shaded region they are referring to would be the area enclosed by the two circles. The given angle...according to my interpretation...is between the 0 degree line and the radii extending from point A.
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    Trig solve for all angles x problem

    Yes I used double angles for them and I had to use the cos^2 identity also. I wish I could just scan my paper and upload it but no scanner.
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    Finding Perimeter/Circumference of part of a circle

    We know the area of a circle as: https://dl.dropbox.com/u/4645835/MATH/Area%20of%20Circle.gif Part B: We want to find the area of the shaded portion. So, we find the area of the outside circle and subtract from it the area of the inside circle...
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    Trig solve for all angles x problem

    Relevant Equations: http://www.sosmath.com/trig/douangl/douangl.html Using the given identities, I was able to simply the given equation to: [PLAIN]https://dl.dropbox.com/u/4645835/MATH/simple.gif
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    Can anyone help me get started on the basics in electrical engineering

    What is your mathematical background?
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    A problem in polar i want check my answer

    I think your angle may be wrong as well. This is what I did: [PLAIN]https://dl.dropbox.com/u/4645835/MATH/Ex1.gif I can explain why I added 180 degrees to the angle I calculated - if needed.
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    A problem in polar i want check my answer

    Ok first off: I believe you've recorded your answer in exponential form. Forms of Complex Numbers: [PLAIN]https://dl.dropbox.com/u/4645835/MATH/ComplexForms.gif Please correct me if I'm wrong.
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    How Do You Convert Complex Numbers Between Cartesian and Polar Forms?

    It is possible for an expression to fit into more than one category or into none of the categories. I'm not sure how this works anymore..as I did this a long time ago. But I think S satisfies exponential and cartesian.
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    Mesh Analysis Help: Solve Circuit for i1 & i2

    2 Equations & 2 Unknowns. My Equations Mesh 1: https://dl.dropbox.com/u/4645835/MATH/mesh1.gif Mesh 2: [PLAIN][PLAIN]https://dl.dropbox.com/u/4645835/MATH/mesh2.gif
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    Finding derivative of sin^-1 (x^2 + 1)

    Table of Derivatives: [PLAIN]https://dl.dropbox.com/u/4645835/MATH/derv_arcsin.gif
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    Antiderivative homework question

    Vorcil is correct.
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