PROBLEM 12.1 The potential energy of a simply supported beam of length I sustaining a load at the center is given by Er d'y dx - Py x dx Use the Ritz method to determine the coefficients for the approximation ỹ =Ea, sin

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Q: Using the theorem on determinants, show that |1 a2 a A 1 (ь — а) (с — а)(с — b) b b2 | - c²

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Q: determine the inverse Laplace transform of the given function. 6 s2 + 25

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