12 Science Maths CBSE Application of Derivatives Answers for MCQ in Hindi to enable students to get Answers in a
narrative video format for the specific question.

Expert Teacher provides 12 Science Maths CBSE Application of Derivatives Answers for MCQ through Video Answers in
Hindi language. This video solution will be useful for students to understand how to write an answer
in exam in order to score more marks. This teacher uses a narrative style for a question from Application of Derivatives not only to explain the proper method of answering question, but deriving right answer too.

Please find the question below and view the Answer in a narrative video format.

** Question:**

** Find the approximate change in the surface area of a cube of side x meters caused by decreasing the side by 1%. **

** Answer Video in** **Hindi****:**

You can select video Answers from other languages also. Please check Answers in
(
English )

## Similar Questions from CBSE, 12th Science, Maths, Application of Derivatives

**Question 1** :

The total revenue in Rupees received from the sale of 'x' units of a product is given by :

The marginal revenue, when x=15 is :

**Question 2** : The slope of the tangent to the curve at the point (2,-1) is _______________.

**Question 3** : The normal at the point (1, 1) on the curve is;

**Question 4** : The line y=mx+1 is a tangent to the curve if the value of m is ________.

**Question 5** : Find the approximate change in volume V of a cube of side x meters caused by increasing the side by 1%.

### Questions from Other Chapters of CBSE, 12th Science, Maths

### Continuity and Differentiability

**Question 1** : Differentiate the function with respect to x.

**Question 2** : If x and y are connected parametrically by the equation , without eliminating the parameter, find .

**Question 3** : Find the second order derivative of the function .

**Question 4** : Find for the function .

**Question 5** : If , find in terms of y alone.

### Vector Algebra

**Question 1** : Find the value of if the points with position vectors and are coplanar.

**Question 2** : If and are two equal vectors, then write the value of

**Question 3** : Find a vector in the direction of vector which has magnitude 21 units.

**Question 4** : Write the position vector of the point which divides the join of points with position vectors and in the ratio 2:1.

**Question 5** : Find a vector in the direction of that has magnitude 7 units.