# NCERT Class 11-Math's: Chapter –13 Limits and Derivatives Part 7

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**Question 14:**

Find , if

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**Question 15:**

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**Question 16:**

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**Question 17:**

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**Question 18:**

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**Question 19:**

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**Question 21:**

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**Question 22:**

**Answer: 2**

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**Question 26:**

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**Question 27:**

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**Question 28:**

If , then find the value of .

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## Differentiate Each of the Functions W. R. To X in Exercises 29 to 42

**Question 29:**

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