Use the Half-Angle Formulas to Simplify the Expression $$\sqrt { \frac { 1 - \cos 10 x } { 2 } }$$

question 21

Multiple Choice

Use the half-angle formulas to simplify the expression. ​​ $$\sqrt { \frac { 1 - \cos 10 x } { 2 } }$$ ​

• A)|sin 5x|
• B)- |sin x|
• C)|sin 10x|
• D)- |sin 5x|
• E)|sin x|

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