Question #ed9da

1 Answer
Dec 28, 2017

Please see below.

Explanation:

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Here is the plot of (cos4x)/(cos2y)+(sin4x)/(sin2y)-1=0

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y is indeterminate as you see below:

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Here is some of the computation:

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Here is a 3-D plot of sin4x+sin4y

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Here is the contour plot of it:

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Here are the roots for y:

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And here is the 3-D plot of 2sin2xsin2y

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And here is the contour plot of it:

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There does not seem to be a solution or a way of proving the equations presented. If you come across one please forward it to me.