Then
         
 
         
  
         
   
         
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         SOLUTION 2   :      Differentiate  
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Then
    
 
    
 
    
 
    
 
    
 
    
 
    
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         SOLUTION 3   :     Differentiate  
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Then
     
 
     
 
     
 
     
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         SOLUTION 4   :    Differentiate  
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Then
     
 
     
 
     
 
     
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         SOLUTION 5   :    Differentiate  
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Then
     
 
     
 
     
  
(An alternate answer can be given using the trigonometry identity 
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         SOLUTION 6   :    Differentiate  
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Then
     
 
     
 
     
 
     
 
     
 
     
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         SOLUTION 7   :    Differentiate  
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Then
     
 
     
 
     
  
     
  
     
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         SOLUTION 8   :    Differentiate  
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Then
     
 
     
 
     
  
     
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         SOLUTION 9   :    Differentiate  
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Then
     
 
     
 
     
 
     
 
     
 
     
  
     
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         SOLUTION 10   :    Differentiate  
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Then
     
 
     
 
     
  
     
  
     
  
     
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         SOLUTION 11   :    Differentiate  
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Then
     
 
     
 
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
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         SOLUTION 12   :    Differentiate  
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Then
     
 
     
 
     
 
              
 
     
 
     
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