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For f(x) = x^2 tabulated at x = 0, 1, 2 with step h = 1, the second forward difference of f at x = 0 is

1961Medium DSSSB TGT Computer Science 0 replies 1 views
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For f(x) = x^2 tabulated at x = 0, 1, 2 with step h = 1, the second forward difference of f at x = 0 is

  • A0
  • B1
  • C4
  • D2
Correct answer: D

Explanation

f(0) = 0, f(1) = 1, f(2) = 4, so the second difference is f(2) - 2f(1) + f(0) = 4 - 2 + 0 = 2.
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