1.

If α is the angle between the polar ray and the tangent at the point of commencement of a lemniscate curve, the equation of the curve, is

A. l = ksin α
B. l = ksin 2α
C. l = ksin 3α
D. l = ktan 2α
E. l = kcos 2α
Answer» C. l = ksin 3α


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