Differential Equations 12 Science Maths CBSE Solutions for MCQ in English to enable students to get Solutions in a narrative video format for the specific question.

Expert Teacher provides Differential Equations 12 Science Maths CBSE Solutions for MCQ through Video Solutions 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 Differential Equations not only to explain the proper method of answering question, but deriving right answer too.

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

** Question:**

** Solution Video in** **English****:**

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

**Question 1** : Solve the following differential equation :

(View Answer Video)

**Question 2** : Obtain the differential equation of the family of circles passing through the points (a, 0) and (-a, 0). (View Answer Video)

**Question 3** : Find the general solution of differential equation (View Answer Video)

**Question 4** : Find the particular solution of the differential equation given that y = 1 when x = 0. (View Answer Video)

**Question 5** : Write the differential equation representing the curve where a is an arbitrary constant. (View Answer Video)

**Question 1** : Write in the simplest form. (View Answer Video)

**Question 2** : Write in the simplest form:

(View Answer Video)

**Question 3** : Solve for

(View Answer Video)

**Question 4** : What is principal value of (View Answer Video)

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

**Question 1** : The total cost C(x) (in Rs) associated with the production of 'x' units of an item is given by :

C (x)=0.005x^{3}-0.02x^{2}+30x+5000.

Find the marginal cost when 3 units are produced, where by marginal cost we mean the instantaneous rate of change of total cost at any level of output. (View Answer Video)

**Question 2** : The maximum value of is, (View Answer Video)

**Question 3** : Find the maximum value of in the interval [1,3]. find the maximum value of the same function in [-3,-1]. (View Answer Video)

**Question 4** : The volume of a cube is increasing at the rate of 9 cubic centimetres per second. How fast is the surface area increasing when the length of an edge is 10 centimetres? (View Answer Video)

**Question 5** : The line y = x + 1 is a tangent to the curve at the point: (View Answer Video)

**Question 1** : Find the value of if the points with position vectors and are coplanar. (View Answer Video)

**Question 2** : 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 3** : If a line has direction ratios 2, -1, -2, then what are its direction cosines? (View Answer Video)

**Question 4** : Find a unit vector in the direction of (View Answer Video)

**Question 5** : if a, b, c are unit vectors such that a + b + c = 0, then find the value of a.b + b.c + c.a. (View Answer Video)