Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 104
and MN parallel to OX. Then Z NPM = 9, andOM ^x, MP = y,OM=x, MP = y.But OM = ON-MN=ON-NM = OMcos^— MPsin^,MP=MN+ NP= NM+ NP= 0M sin 6+ MP cos 6. .. X = x COS 6 — y sin 6,y = x sin 9 + y cos 9. Ex. Transform the equation x + y — 1 = 0 from one set of rect-angular axes to a new set having tlie same… … 90 PLANE ANALYTIC GEOMETKY. Let OX and OY be the original axes at right angles to eachother, and OX and OY be the new axes, ^^ XOX beingdenoted by 6 and /_ XOY by 6. The oblique angle includedby the new axes will accordingly be 6 — 6. Let P be any point in the plane, its original coordinatesbeing x…
Geometry, Analytic
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