Concept Question How many quadrature points do you need to integrate exactly the stiffness matrix of a lD finite element with quadratic interpolation for the displacements? gauss thod 123 Statement Statement(2 2345 Statement 3) None of the above statements DKDU++++ ++++ ++++ ++++ ++++ Concept Question ++++ ++++ ++++ ++++ ++++ How many quadrature points do you need to integrate exactly the stiffness matrix of a 1D finite element with quadratic interpolation for the displacements? Gauss’ method ? 1. m = 1 2. m = 2 3. m = 3 1. ++++ Statement (1) 2. ++++ Statement (2) 3. ++++ Statement (3) 4. ++++ None of the above statements 5. ++++ DKDU