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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Definitions:

Acromioclavicular Joint

A joint at the top of the shoulder where the acromion of the scapula and the clavicle meet.

Suprascapular Notch

A notch in the scapula that allows passage of the suprascapular nerve and vessels.

Acetabulum

The socket in the hip bone that receives the head of the thigh bone to form the hip joint.

Greater Sciatic Notch

A deep notch in the ilium bone of the pelvis through which the sciatic nerve passes.