Schmall, Charles Nelson. [from old catalog] · New York, D. Van Nostrand company · leaf 80
n being used according as the pointand the origin are on opposite sides of the line or on thesame side. Notice that the required expression is found bywriting the equation of the line so that its dexter is zero, andthen substituting the co-ordinates of the given point for xand y. Again, if the… … Fig. 71. If P(Xi, y,) be any point on either bisector, it is equi-distant from the sides of the angle, 64 ANALYTICAL GEOMETRY . Axj + By^ + C ^ A^x^ + B,7/^ + C, VA2 + B2 Va74^ in which the upper sign is used for the bisector of the anglein which the origin lies. If the lines are given in the form…
Geometry, Analytic
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