Answers created by Christian S.

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• How/Why do you get the solutions to a trigonometry equation with multiple angles?
  
• How do you verify `csc^2(theta)(1-cos^2(theta))=1`?
  
• A water tower 30 m tall is located at the top of a hill. From a distance of D = 105 m down the hill, it is observed that the angle formed between the top and base of the tower is 8°. How do you find the angle of inclination of the hill?
  
• How do you simplify `(1+tan^2x)/(1+cot^2x)`?
  
• How do you do simplify `cos [sec ^-1 (-5)]`?
  
• How do you graph `f(x)=1- cos 3x`?
  
• How do you calculate `arcsin -1`?
  
• How do you simplify `arctan (tan 3pi/4)`?
  
• How do you simplify `cotB + (sinB / (1+cosB))`?
  
• How do you sketch y=2sinx when x is between 0 and 360?
  
• How do you simplify `(sin² t - cos² t sin² t) / sin² t`?
  
• How do you find Tan^-1(-1) without a calculator?