Choose the one alternative that best completes the statement or answers the question.
Find the exact value of the expression.
-$\tan ^ { - 1 } \left[ \tan \left( \frac { 6 \pi } { 7 } \right) \right]$
A) $- \frac { 6 \pi } { 7 }$
B) $\frac { \pi } { 7 }$
C) $\frac { 6 \pi } { 7 }$
D) $- \frac { \pi } { 7 }$

Question

Quizplus · Accepted Answer

The Answer of Choose the one alternative that best completes the statement or answers the question.
Find the exact value of the expression.
-$\tan ^ { - 1 } \left[ \tan \left( \frac { 6 \pi } { 7 } \right) \right]$
A) $- \frac { 6 \pi } { 7 }$
B) $\frac { \pi } { 7 }$
C) $\frac { 6 \pi } { 7 }$
D) $- \frac { \pi } { 7 }$

Choose the One Alternative That Best Completes the Statement or Answers