Shown below is a Beam Structure with A as a built$-$in$-$support, while B and C are roller support.

Assume the reactions at $B$ and $C$ as the redundants.

draw the Primary Structure and the moment Diagram$($s$)$ when external loading is acting on the primary structure.

when unit load is applied at the removed redundant$($s$).$ What is the moment at A when the unit load is applied at B $?$

when unit load is applied at the removed redundant$($s$).$ What is the moment at A when the unit load is applied at $C?$

Determine the deformation of the primary structure at the location of the redundant By due to the externally applied loads $($ write answer as multiplied by El$)$

Determine the deformation of the primary structure at the location of the redundant Cy due to the externally applied loads $-($ write answer as multiplied by El$)$

Determine the deformation of the primary structure at the location of the redundant By due to unit load applied at B ElffBB $($write answer as multiplied by El$)$

Determine the deformation of the primary structure at the location of the redundant By due to unit load applied at C ElffBC$($write answer as multiplied by El$)$

Based on the above computed parameters what is the Reaction at the support at $C?$

Based on the above computed parameters what is the Horizontal and vertical Reaction at the support at A $($Ax and Ay$)?$

Based on the above computed parameters what is the Moment at support A$?$

What is the moment at $B$

What is the moment where the shear between A and $B$ is zero