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The first thing you need to
The first thing you need to do is solve for the reactions RB and RD. To find the shear and bending moment equations for each segment, cut a segment at distance x from the left end and write the equation. There are many solved problems in this site that will guide on how to do it step by step. Example of such page is this one: http://www.mathalino.com/node/330. Explore the other pages for more solved problems.
Can you answer it for me sir?
In reply to The first thing you need to by Jhun Vert
Thanks sir.