GATE | GATE CS 1997 | Question 35

The trapezoidal method to numerically obtain bf(x) dx  has an error E bounded by ((b-a)/12)h2 max  f ”(x), x ∈ [a,b] where h is the width of the trapezoids. The minimum number of trapezoids guaranteed to ensure E ≤ 10-4 in computing ln 7 using f= 1/x is
(A) 60
(B) 100
(C) 600
(D) 10,000

Answer: (C)


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