5.3 Determine the real root of f (x) =−26 + 85x −91x2 +
44x3 −8x4 +x5:
(a) Graphically.
(b) Using bisection to determine the root to εs = 10%. Employ ini
tial guesses of xl = 0.5 and xu = 1.0.
(c) Perform the same computation as in (b) but use the false
position method and εs = 0.2 %.
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