How do you use a calculator to approximate #arctan15#?

Related questions

• What are the Basic Inverse Trigonometric Functions?
• How do you use inverse trig functions to find angles?
• How do you use inverse trigonometric functions to find the solutions of the equation that are in...
• How do you use inverse trig functions to solve equations?
• How do you evalute #sin^-1 (-sqrt(3)/2)#?
• How do you evalute #tan^-1 (-sqrt(3))#?
• How do you find the inverse of #f(x) = \frac{1}{x-5}# algebraically?
• How do you find the inverse of #f(x) = 5 sin^{-1}( frac{2}{x-3} )#?
• What is tan(arctan 10)?
• How do you find the #arcsin(sin((7pi)/6))#?