2. Find the limit and confirm your answer using the sandwich theorem 1 - cos x lim 818 1. 2. 3. 4. lim 8118 1 - cos x sin x lim X118 X sin (x²) lim x-x x

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A: Here is the solution of the given problem.  Partial Derivatives.

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A: We can find the solution of the definite integral as below.

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A:

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A: We can solve this as follows:

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