Evaluate arctan(0)
Problem
Solution
Identify the definition of the inverse tangent function, where
y=arctan(x) means thattan(y)=x fory in the interval(−π/2,π/2) Set up the equation to find the angle
y such thattan(y)=0 Recall the trigonometric identity
tan(y)=sin(y)/cos(y) which equals0 whensin(y)=0 Determine the value of
y within the range(−π/2,π/2) wheresin(y)=0 which occurs aty=0
Final Answer
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