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Home »  » Courses » Mathematics » Advanced Mathematics 3205 (delisted) » Unit 01 » Set 01 ILO 03 » Solution

Find the sequences of differences as required.

From the lesson we know that the third-level difference is 6 times the coefficient of the cubic term ; we have

Using as the general form for a cubic sequence, create three equations using the first three terms of the sequence and 2 for the a value.

 

 

Write as a matrix equation and solve using technology:

Substituting these values into the general form, we have the required equation