2. (i) What happens when you apply the Euler-Lagrange equation to the functional (y + xy') dx ? [ v ') (ii) What is goin
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2. (i) What happens when you apply the Euler-Lagrange equation to the functional (y + xy') dx ? [ v ') (ii) What is goin
2. (i) What happens when you apply the Euler-Lagrange equation to the functional (y + xy') dx ? [ v ') (ii) What is going on here? Hint: It might help to split the integral and integrate the second piece by parts.
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