1. Numerical techniques mostly involveO Iterative method © Reduction method© Elimination method © None of the

Numerical techniques often involve iterative methods, reduction methods, and elimination methods.

1. Iterative Method: This is a mathematical procedure that uses an initial guess to generate a sequence of improving approximate solutions for a class of problems. A specific kind of iterative method is the point iteration method.

2. Reduction Method: This is a method of solving equations by reducing them to a simpler form. For example, in linear algebra, a system of linear equations can be solved using Gaussian reduction (also known as Gaussian elimination or row reduction).

3. Elimination Method: This is a method for solving a system of equations. The main goal of the elimination method is to convert a system of equations into a new system that is easier to solve. The elimination method for solving systems of linear equations uses the addition/subtraction of the equations to eliminate one of the variables and make the system of equations easier to solve.

So, the answer is none of the above because all the given options are involved in numerical techniques.