MTH603 Assignment no 2 Discussion and due date is 14th July 2014

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MTH603 Assignment no 2 Discussion and due date is 14th July 2014

Question: 1 Marks: 5 + 10

Using Lagrange’s interpolation formula, find the value of cos
6
  π
    using the following table.
Also
estimate the error in the solution.

x 0
4
π
2
π
y x =cos 1 0.7071 0



Question: 2 Marks: 2.5 + 2.5 + 5 + 5

Estimate (2 3. ) d
dx
and (1 3. ) d
dx
, using the following table.

x 1.3 1.5 1.7 1.9 2.1 2.3
y 3.753 3.523 3.333 1.9922 1.5442 1.2969