Find the exact value of the expression. Do not use a calculator.
-$\sin ^ { - 1 } \left[ \sin \left( \frac { 6 \pi } { 7 } \right) \right]$
A) $\frac { \pi } { 7 }$
B) $\frac { 7 } { 6 \pi }$
C) $\frac { 6 \pi } { 7 }$
D) $\frac { 7 } { \pi }$

Question

Quizplus · Accepted Answer

The Answer is A

Find the Exact Value of the Expression sin⁡−1[sin⁡(6π7)]\sin ^ { - 1 } \left[ \sin \left( \frac { 6 \pi } { 7 } \right) \right]sin−1[sin(76π​)]

Find the Exact Value of the Expression $\sin ^ { - 1 } \left[ \sin \left( \frac { 6 \pi } { 7 } \right) \right]$