Answers created by Joe Y.

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• What does #-cos(arccos(5))+2csc(arctan(12))# equal?
  
• What are the correct singular and plural possessive forms for each word?
  
• Is "my" a personal, reflexive, or possessive pronoun?
  
• Describe what happens at the synapse of two neurons?
  
• How do impulses travel across a synapse?
  
• What is #sqrt(108x^3)/sqrt(3x)#?