Question: 3 . A forward difference approximation to the derivative of the function ( ) is given by: ( ) = ( + ) + (

3. A forward difference approximation to the derivative of the function () is given by:
()=(+)+(+)()
where, is the uniform step size between successive . Using Taylor Series analysis,
derive the above expression. Based on your derivation, what is the order of the
truncation error with this method? (3 Marks)

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