Solve the equation for exact solutions.
-$\arccos x + \arccos 2 x = \arccos \frac { 1 } { 2 }$
A) $\{ 2 \}$
B) $\left\{ - \frac { 3 } { 4 } , \frac { 3 } { 4 } \right\}$
C) $\{ - 5 + 3 \sqrt { 2 } \}$
D) $\left\{ \frac { 1 } { 2 } \right\}$

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The Answer of Solve the equation for exact solutions.
-$\arccos x + \arccos 2 x = \arccos \frac { 1 } { 2 }$
A) $\{ 2 \}$
B) $\left\{ - \frac { 3 } { 4 } , \frac { 3 } { 4 } \right\}$
C) $\{ - 5 + 3 \sqrt { 2 } \}$
D) $\left\{ \frac { 1 } { 2 } \right\}$

Solve the Equation for Exact Solutions arccos⁡x+arccos⁡2x=arccos⁡12\arccos x + \arccos 2 x = \arccos \frac { 1 } { 2 }arccosx+arccos2x=arccos21​

Solve the Equation for Exact Solutions $\arccos x + \arccos 2 x = \arccos \frac { 1 } { 2 }$