Problem $4$

$($i$)(2$ points$)$ If the above beam were to be solved using an "Approximate Method", how many number of assumptions would have to be introduced by the "Method" to render the beam statically determinate.

$($ii$)(2$ points$)$ What is an inflection point?

$($iii$)(6$ points$)$ Assume the above beam would be solved using "Force Method" in which the vertical reaction at C is selected to be the redundant. Draw or provide a sketch showing the elastic curve of the "reduced or primary structure" and the "primary structure with the redundant". Label the deformation in each sketch as appropriate.