# MTH603 Assignment 2

## Question: 1

Using Lagrange’s interpolation formula, find the value of cos(π/6) using the following table. Also estimate the error in the solution.

| 0 | π/4 | π/2 |

| 1 | 0.7071 | 0 |

## Question: 2

Estimate d/dx(2.3) and d/dx(1.3), using the following table.

| 1.3 | 1.5 | 1.7 | 1.9 | 2.1 | 2.3 |

| 3.753 | 3.523 | 3.333 | 1.9922 | 1.5442 | 1.2969 |