Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 189
olar coordinates are 5, 15°,60 ; 8, 90°, 45^ 2. Find the polar coordinates of the point (3, 4, 5). 3. Find the rectangular coordinates of the point (10, 30°, 60°). 4. Find the distance from the origin to the point (4, 5, 7). Art. Distance between Two Points Let the rectangular coordinates of the… … POINT, LINE, AND PLANE IN SPACE 175 jection of D on the I-axis; z — z the projection of D on the^axis.* Calling the angles which B makes with the coordi-nate axes respectively X, Y, Z, x — x = D cos X, y — y = D cos Y, z — z = D cos Z.Substituting in (1), there results D- cos- X + D- cos- Y+ D-…
Geometry, Analytic
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