The British Encyclopedia: Or, Dictionary of Arts and Sciences. Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Τόμος 4Mitchell, Ames, and White, 1818 |
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... opposite hyperbolas . PROP . XII . Fig . 21 , 22. To find the centre of an ellipse , or opposite hyperbolas , giving by position . Draw two parallel right lines , as DE and FG , terminated both ways in the ellipse , or one hyperbola ...
... opposite hyperbolas . PROP . XII . Fig . 21 , 22. To find the centre of an ellipse , or opposite hyperbolas , giving by position . Draw two parallel right lines , as DE and FG , terminated both ways in the ellipse , or one hyperbola ...
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... hyperbola , or opposite hyperbolas . PROP . XXIV . Fig . 37 , 38. If from a point ( P or Q ) in an asymptote of a right line be drawn to touch or cut the hyperbola , or oppo- site hyperbolas ( PH or QRS ) : the square of the tangent ...
... hyperbola , or opposite hyperbolas . PROP . XXIV . Fig . 37 , 38. If from a point ( P or Q ) in an asymptote of a right line be drawn to touch or cut the hyperbola , or oppo- site hyperbolas ( PH or QRS ) : the square of the tangent ...
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... hyperbola , or opposite hyperbolas . But the focus of a parabola ( fig . 45. ) is a point F in the axis within the curve , and distant from the vertex by a line equal to one fourth part of the parameter of the axis . Cor . The distance ...
... hyperbola , or opposite hyperbolas . But the focus of a parabola ( fig . 45. ) is a point F in the axis within the curve , and distant from the vertex by a line equal to one fourth part of the parameter of the axis . Cor . The distance ...
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