Required: Determine if each structure is unstable, externally statically determinate, or externally statically indeterminate. If the structure is externally statically indeterminate, state the degree of indeterminacy. If the structure is unstable, describe in words and with a drawing, the mechanism of instability. (a) (c) (d) Note: Joint at center of structure is fixed (b) Note: Joint in center is a roller

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Matrix Algebra for Structural analysis

Structural analysis is a process in which the effects of different loads and internal forces, acting on structures and their elements are determined. This method of analysis is effective in detecting the failure loads of the structural elements and the design can be altered before commencing the construction process, which ensures proper strength and safety of the structures.