- Books Name
- AMARENDRA PATTANAYAK Mathmatics Book

- Publication
- KRISHNA PUBLICATIONS

- Course
- CBSE Class 11

- Subject
- Mathmatics

**Derivatives of polynomial and trigonometric functions**

**Example:**** ****Compute derivative of f(x) = sin 2x**

**Ans: f’(x) = **

**= 2sinx(-sinx) + 2cosx cosx**

**= -2sin ^{2}x + 2cos^{2}x **

**= 2 cos2x**

**Examples:**

**Solution:**

**Solution:**

**3. (3x + 5) (1 + tan x)**

**Solution:**

**4. (sec x – 1) (sec x + 1)**

**Solution:**

**Solution:**

**Solution:**