I need first 4 questions or else thumbs down. The questions are from computer science course numerical computing.

Q1) Find Relative Error, Absolute Error and the range in which the solution lies [10 Marks] a) 2.3(4.18-3.24) 1.3384-2.038 b) 4.577 Q2) The length and breadth of a rectangle are given by 2.52cm and 1.78 cm respectively. Find the range in which the area lies. (10 Marks] Q3) Consider the series: (10 Marks] *3 arctan(x) = =X - + + ... 3 5 7 a) Find the (n+1)th term of the above series. b) How many terms of the above series are required to compute arctan(x) correct to 6 dp when x=1 and 1/2? Q4) Two parameters u and v have been estimated as follows: (10 Marks] u = 2.5 + 1 v = 4.5 + e2 Where le