CBSE Maths 12 Science Application of Derivatives MCQ Answers in English to enable students to get Answers in a narrative video format for the specific 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** : Find the approximate change in volume V of a cube of side x meters caused by increasing the side by 1%. (View Answer Video)

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

**Question 5** : Find the approximate value of f(5.001) where. (View Answer Video)

**Question 1** : The equation of a line AB is Write the direction cosines of a line parallel to the above line. (View Answer Video)

**Question 2** : Find the equation of the plane passing through the point (-1, 3, 2) and perpendicular to each of the planes x + 2y + 3z = 5 and 3x + 3y + z = 0. (View Answer Video)

**Question 3** : Find the vector and cartesian forms of the equation of the plane passing through the point (1, 2, -4) and parallel to the lines and Also, find the distance of the point (9, -8, -10) from the plane thus obtained. (View Answer Video)

**Question 4** : Find the distance between the planes 2x+3y+4z=10 and 4x+6y+8z=18. (View Answer Video)

**Question 5** : Write the vector equation of a line passing through the point (1, -1, 2) and parallel to the line whose equations are, (View Answer Video)

**Question 1** : Given, , find the value of y. (View Answer Video)

**Question 2** : Find the value of x, from the equation: . (View Answer Video)

**Question 3** : Find the transpose of the matrix: . (View Answer Video)

**Question 4** : Find the value of c from the equation: . (View Answer Video)

**Question 5** : If, find the value of x. (View Answer Video)

**Question 1** : Evaluate: as limit of sums. (View Answer Video)

**Question 2** : Find : . (View Answer Video)

**Question 3** : Find the integral of the function . (View Answer Video)

**Question 4** : Write the value of: (View Answer Video)

**Question 5** : Find : . (View Answer Video)