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4:46 PM
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Q: How can we create a new tag in a Stack Exchange site?

gloomHow can we create a new tag in a Stack Exchange site?

discussion tagging
 
Martin Sleziak
Martin Sleziak
5:46 PM
A new tag line was created. Keep? Remove? Do we have better tag for topics related to lines? Do we need such a tag? Should it be plural instead?
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Q: Rotating an ellipse about a line

Vishwa IyerI'm attempting to solve the following question: What is the volume of the region formed when the ellipse $9x^2+4y^2=36$ is revolved around the line $2x+y=5$? My try: $$9x^2+4y^2=36$$ $$y =\pm\frac{3}{2}\sqrt{4-x^2}$$ Then I proceeded to draw rectangles from the ellipse onto the line, which ...

integration conic-sections volume line
For example posts about intersection of two lines seem to be tagged by various different tags. (I would probably expect analytic-geometry or linear-algebra at most of such questions. Possibly also systems-of-equations.)
 

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