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Co-ordinates of the nodes of finite element are given by P(4, 0) and Q(8, 0). Find the expression of x in terms of $\zeta$ when:
i) Third node R is taken at (6, 0)
ii) Third node R is taken at (5,0)
Comment on the result.
Subject: Finite Element Analysis
Topic: Two Dimensional Finite Element Formulations
Difficulty: Medium