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Home > CCG > Chapter 4 > Lesson 4.2.5 > Problem 4-111

4-111.

Consider the sequence , ,   

  1. Find the value of if the sequence is arithmetic.

    What is the difference between the first two numbers in the sequence?

    Add the difference to .

    The third number is , set this equal to .

  2. Find the value of if the sequence is geometric.

    Follow the same steps from part (a) but replace the addition with multiplication.