If N3 is dependent shape function, It is represented as ____
a) N3=ξ
b) N3=1-ξ
c) N3=1-η
d) N3=1-ξ-η
Answer: d
Explanation: The shape function is a function which interpolates the solution between the discrete values obtained at the mesh nodes. N1, N2, N3 are not linearly independent only one of two of these are independent.
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