Sketch following displacement field

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Homework Statement

calc extension shears dilatation and rotation u(sub)i= ex(sub)i ... e is constant

Homework Equations

The Attempt at a Solution

I have no clue where to start. I am reading the textbook and can't understand how to apply it to this problem. Any help would be awesome thanks

 

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need help. I am willing to pay for step by step help thanks