1. A certain ellipse is centered at the origin from which the major axis is always equal to 25 and the minor axis is free to change as long as it obeys a> b for ellipse. The directrices of the ellipse is perpendicular to the x-axis. Determine the differential equation which will satisfy the abovementioned setup.

Q: WOW THANKS! Can you help with question 18 too? I realized I already answered 20 after i sent it

A: Here is the solution:

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Q: Number 43, please.

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A: detailed solution is given below

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Q: question Q3B

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Q: Can you please solve for Q* and v as well. Thanks

A: