1. Find a formula for tn in terms of n, and evaluate t8 for the sequence 15,11,7,3,....

    2. hint
    answer
     
  2. In a certain sequence, t2 = 2 and t5 = 16. Find t10 if the sequence is arithmetic.

    3. hint
    answer
     
  3. Find the third, fourth, and fifth tems of the sequence:  t1 = 1,   tn = tn-1 + n.

    4.  

     
     
     

    hint
    answer
     

  4.  Evaluate 12, (1 + 2)2, (1 + 2 + 3)2, and (1 + 2 + 3 + 4)2. Find a recursive definition for this sequence.

    5.  

     
     
     

    hint
    answer

Go to Arithmetic Sequences
Go to Sequences, Probability, and Statistics
Go to Precalculus Lessons
Go to Precalculus Page