Use Series to Evaluate the Limit $$\lim _ { x \rightarrow 0 } \frac { \sin 10 x - \sin 20 x } { x }$$

question 194

Multiple Choice

Use series to evaluate the limit.
- $$\lim _ { x \rightarrow 0 } \frac { \sin 10 x - \sin 20 x } { x }$$

• A) -10
• B) -1
• C) 10
• D) 1

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