Solution: Find the radius of curvature at any point in the curve y + ln cos x = 0.

Find the radius of curvature at any point in the curve y + ln cos x = 0. How to find the radius of curvature at any given point in the curve?

Find the radius of curvature at any point in the curve y + ln cos x = 0.

Problem Statement: ECE Board November 1996

Find the radius of curvature at any point in the curve y + ln cos x = 0.
  • A. cos x
  • B. 1.5707
  • C. sec x
  • D. 1

Problem Answer:

The radius of curvature at any point in the curve is sec x

Solution:

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