Extremal of ∫{√(𝟏+(𝒚′ )^𝟐 )/𝒙}𝒅𝒙 || Calculus of Variations || 18mat31 || Dr Prashant Patil 

In this video, it is shown that the extremal of the functional ∫{√(𝟏+(𝒚′ )^𝟐 )/𝒙}𝒅𝒙 is a circle with a center at (0,2) and with a radius square root of 5 using Euler's equation.
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