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

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**Question 1** : What is the maximum value of the function sin x+ cos x? (View Answer Video)

**Question 2** : Find the maximum profit that a company can make if the profit function is. (View Answer Video)

**Question 3** : On which of the following intervals in the function strictly decreasing? (View Answer Video)

**Question 4** : If , then the approximate value of f (3.02) is (View Answer Video)

**Question 5** : Find approximate value of (View Answer Video)

**Question 1** : Find the magnitude of two vectors a and b having the same magnitude and such that the angle between them is and their scalar product is 1/2. (View Answer Video)

**Question 2** : Find the scalar and vector components of the vector with initial point (2, 1) and terminal point (-5, 7). (View Answer Video)

**Question 3** : Find the unit vector in the direction of vector PQ, where P and Q are the points (1, 2, 3) and (4, 5, 6) respectively. (View Answer Video)

**Question 4** : If a line has direction ratios 2, -1, -2, then what are its direction cosines? (View Answer Video)

**Question 5** : Find the vector quantities :

(i) Work (ii) Force

(iii) Velocity (iv) Displacement. (View Answer Video)

**Question 1** : Write in the simplest form:

(View Answer Video)

**Question 2** : Solve for

(View Answer Video)

**Question 3** : Write in the simplest form. (View Answer Video)

**Question 4** : Solve for

(View Answer Video)

**Question 5** : Write the principal value of (View Answer Video)

**Question 1** : Evaluate the determinants in :. (View Answer Video)

**Question 2** : If=andis Cofactor of , then the value of is given by (View Answer Video)

**Question 3** : Which of the following is correct? (View Answer Video)

**Question 4** : Using the properties of determinants, evaluate . (View Answer Video)

**Question 5** : Find the adjoint of the matrix . (View Answer Video)