Learning Resources

Home »  » Courses » Mathematics » Mathematics 3103 (delisted) » Unit 02 » Set 03 ILO 02 » Go to Work

Lesson

Applications

This lesson introduces no new concepts. It combines the work on exponents and radicals and applies it to several examples.

Example 1

Simplify:  

Solution

                                  

Example 2

Simplify:   

Solution

                             

Example 3

Simplify and write your answer in simplest radical form:   

Solution

                                          

In a earlier lesson, in order to multiply or divide radicals they had to have the same index. We now have a way to multiply and divide radicals which have different indexes by first converting them to exponential form and using the laws of radicals.

Example 4

Simplify. Write the answer as a single radical in simplest form: 

Solution

                                          

Example 5

Simplify:  

Solution

Since the denominator is irrational, we first rationalize the denominator. We can leave the expressions in rational exponent form to do this and multiply by a factor that will make the exponent in the denominator an integer.

                                   

Activity

Print off a copy of this page and add it to your Math 3103 binder. Then answer the questions in your binder.

Simplify each of the following. Leave answers in simplest exponential form.

1.                        2.                        3.     

4.                   5.                           6.    

7.                      8. 

Simplify each of the following. Write the answer as a single radical in simplest form.

9.                          10. 

Answers

Test Yourself

Simplify each of the following.

1.                      2.                           3. 

4.                             5.                    6. 

7.                       8.                            9. 

10. 

Answers