Lesson 5

Are You Ready?

 

Before beginning this lesson you should be able to

• solve problems involving geometric sequences
  
  
• apply the product law of exponents

Complete these questions. If you experience difficulty and need help, visit Refresher or contact your teacher.

1. Consider this geometric sequence:
   
   
   1. State the values of t1 and r. Answer
      
      
   2. Determine the general term tn. Answer
      
      
   3. Find t10. Answer
      
      
2. What is the difference between a sequence and a series? Give an example of each. Answer
   
   
3. Use the product law of exponents to simplify the following expressions:
   
   
   1. (x2)(x3) Answer
      
      
   2. (27)(25) Answer
      
      
   3. (3n+2)(34) Answer
      
      
   4. (b1)(bn−1) Answer

How did the questions go? Depending on your answer, skip forward to Discover or work through Refresher.