Use the Half-Angle Formulas to Simplify the Expression $- \sqrt { \frac { 1 + \cos 6 x } { 1 - \cos 6 x } }$

question 108

Multiple Choice

Use the half-angle formulas to simplify the expression. $- \sqrt { \frac { 1 + \cos 6 x } { 1 - \cos 6 x } }$

• A) - |cot x|
• B) - |3 tan x|
• C) - |3 tan 6x|
• D) - |3 cot 3x|
• E) - |cot 3x|

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