Use the Properties of Inverse Trigonometric Functions to Evaluate $$\arctan \left[ \tan \left( \frac { 2 \pi } { 5 } \right) \right]$$

question 16

Multiple Choice

Use the properties of inverse trigonometric functions to evaluate $$\arctan \left[ \tan \left( \frac { 2 \pi } { 5 } \right) \right]$$ .

• A) \(\frac { \pi } { 5 }\)
• B) \(\frac { 2 \pi } { 3 }\)
• C) \(\frac { 5 \pi } { 2 }\)
• D) \(\frac { 2 \pi } { 5 }\)
• E) \(- \frac { 3 \pi } { 5 }\)

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