Question: Which of these iterative processes is unstable? (Note: epsilon_n? n is the error in the nth iteration).
Options
A : frac{epsilon_{n+1}}{epsilon_n} = 0.5? n+1 ? n =0.5
B : frac{epsilon_{n+1}}{epsilon_n} = 0.75? n+1 ? n =0.75
C : frac{epsilon_{n+1}}{epsilon_n} = 1.25? n+1 ? n =1.25
D : frac{epsilon_{n+1}}{epsilon_n} = 1? n+1 ? n =1
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