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

Expert Teacher provides 12 Science CBSE Answers for MCQ Maths Application of Derivatives through Video Answers in English 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 two positive numbers whose sum is 16 and the sum of whose cubes is minimum. **

** Answer Video in** **English****:**

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

**Question 1** : The points on the curve , where the normal to the curve makes equal intercepts with the axes are, (View Answer Video)

**Question 2** : The line is a tangent to the curve at the point. (View Answer Video)

**Question 3** : A cylindrical tank of radius 10 m is being filled with wheat at the rate of the 314 cubic meters per hour. Then the depth of the wheat is increasing at the rate of ___________. (View Answer Video)

**Question 4** : The normal to the curve passing (1, 2) is : (View Answer Video)

**Question 5** : 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 1** : Find the equation of the plane passing through the line of intersection of the planes and which is perpendicular to the plane . (View Answer Video)

**Question 2** : Find the co-ordinates of the point where the line through the points (3, -4, -5) and (2, -3, 1) crosses the plane

2x + y + z = 7. (View Answer Video)

**Question 3** : Find the distance of the point from the plane 3x + y - z + 2+0 measured parallel to the line Also, find the foot of the perpendicular from the given point upon the given plane. (View Answer Video)

**Question 4** : If lines and intersect, then find the value of k and hence find the equation of plane containing these lines. (View Answer Video)

**Question 5** : Write the vector equation of the plane passing through the point (a, b, c) and parallel to the plane (View Answer Video)

**Question 1** : Find a unit vector parallel to the sum of vectors and (View Answer Video)

**Question 2** : Find if and (View Answer Video)

**Question 3** : Find the scalar quantities from the following:

(i) 10 kg (ii) 2 m north-west (iii)

(iv) 40 W (v) (vi) (View Answer Video)

**Question 4** : Find a vector in the direction of that has magnitude 7 units. (View Answer Video)

**Question 5** : If the vertices A, B, C of a triangle ABC have position vectors (1, 2, 3), (-1, 0, 0), (0, 1, 2) respectively then find <ABC (<ABC is the angle between the vectors BA and BC). (View Answer Video)

**Question 1** : A system of linear equations AX = B is said to be inconsistent, if the system of equations has, (View Answer Video)

**Question 2** : Find the inverse of the matrix . (View Answer Video)

**Question 3** : Let , where . THhen (View Answer Video)

**Question 4** : Which of the following is correct? (View Answer Video)

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