Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 93
r = ± 2.828 ± 2.378 0 imaginary 0 ± 2.37 ± 2.828 … From 180° to 300° thecurve is traced a secondtime. The pole is a cen-ter of symmetry of thecurve. Problems. — Plot COS 0 cos (6 — J tt) 3. r = ncnsi{3 0). 4. )• = 2 cos 0. 5. r= asm (2 0). 6. r = acos(o0). 7. r = asin(Se). 8. » = rtsin(4^). 9. r = a sin (5 6). 10. r = ^, the reciprocal spiral. 11.…
Geometry, Analytic
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