Module 5: Lesson 5

 

Self-Check 2

 

Question 2 on page 314 of the textbook

2.  
   1. One possible solution is shown.
      
      
       

      LS	RS
      	sec x

      
      
      The left side is equal to the right side, so the identity is proven.
   2. One possible solution is shown.
      
      
       

      LS	RS
      	sin x − cos x

      
      
      

      The left side is equal to the right side, so the identity is proven.

   3. One possible solution is shown.
      
      
       

      LS	RS

      
      
      

      The left side is equal to the right side, so the identity is proven.

   4. One possible solution is shown.
      
      
       

      LS	RS

      
      
      

      The left side is equal to the right side, so the identity is proven.

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