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Part CCSIR NET December 2023newton-form-coefficient

Newton form coefficient

The coefficient of in the interpolating polynomial for the data x = 0, 1, 2, 3, 4 with y = 1, 2, 1, 3, 5 is

  1. A.−1/3
  2. B.−1/2
  3. C.5/6
  4. D.17/6✓

You have the answer. Trap Analysis is why the other three were written.

Not a worked solution repeated four times — the specific reasoning error each wrong option was built to reward, and why this one tests execution slip.

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The trap it tests

Execution slip

The idea was right. The computation was not.

Drill statements like this

Related counterexample: Increasing the number of equally spaced interpolation nodes improves the approximation

The chapter behind this: Interpolation and numerical integration — free to read

From Numerical Analysis › Interpolation and numerical integration with error terms

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