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

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** Question:**

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**Question 1** : The total revenue (in Rs) received from the sale of 'x' units of a product is given by :

R(x) =3x^{2}+36x+5.

FInd the marginal revenue when x=5, where by marginal revenue we mean the rate of change of total revenue with respect to the number of items sold at an instant. (View Answer Video)

**Question 2** :

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 3** : The normal to the curve passing (1,2) is____________. (View Answer Video)

**Question 4** : The approximate change in the volume of a cube of side x meters caused by increasing the side by 3% is _____________. (View Answer Video)

**Question 5** : Find the maximum profit that a company can make if the profit function is. (View Answer Video)

**Question 1** : is equal to :

(View Answer Video)

**Question 2** : is equal to : (View Answer Video)

**Question 3** : Write in the simplest form:

(View Answer Video)

**Question 4** : Solve for

(View Answer Video)

**Question 5** : Evaluate:

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**Question 1** : Using the properties of determinants, evaluate . (View Answer Video)

**Question 2** : Evaluate the determinant: . (View Answer Video)

**Question 3** : Find the equation of the line joining (1, 2) and (3, 6) using determinants. (View Answer Video)

**Question 4** : Evaluate the determinants:. (View Answer Video)

**Question 5** : If A is a symmetric matrix, then ? (View Answer Video)

**Question 1** : Find the transpose of the matrix: . (View Answer Video)

**Question 2** : Using elementary transformation, find the inverse of the matrix . (View Answer Video)

**Question 3** : Let Find BA. (View Answer Video)

**Question 4** : Find the transpose of the matrix: . (View Answer Video)

**Question 5** : Let Find A - B. (View Answer Video)