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UP TGT Mathematics Calculus Differentiation Test Series - Part 2

The angle between the tangent and the radius vector at any point on the logarithmic spiral r = a e^(θ cot α) is:

Type: MCQ • Marks: 1
The angle between the tangent and the radius vector at any point on the logarithmic spiral r = a e^(θ cot α) is:
Options
A. 90° - α
B. α
C. 90°
D. 0°
Explanation
Standard polar tangent property: angle between tangent and radius vector is constant α.
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