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

Expert Teacher provides Maths 12 Science CBSE Vector Algebra 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 Vector Algebra 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:**

** Find the angle between the vectors and **

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

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

**Question 1** : Find if the vectors and are coplanar. (View Answer Video)

**Question 2** : Find a vector of magnitude making an angle of with x-axis, with y-axis and an acute angle with z-axis. (View Answer Video)

**Question 3** : Find the direction of the vector (View Answer Video)

**Question 4** : Write the value of for which the vectors and are parallel vectors. (View Answer Video)

**Question 5** : The two vectors and represent the two sides AB and AC, respectively of Find the length of the median

though A. (View Answer Video)

**Question 1** : Solve the equation :

(View Answer Video)

**Question 2** : If then find x. (View Answer Video)

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

(View Answer Video)

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

**Question 5** : Evaluate :

(View Answer Video)

**Question 1** : Find two numbers whose sum is 24 and whose product is as large as possible. (View Answer Video)

**Question 2** : A cylindrical tank of radius 10 m is being filled with wheat at the rate of 314 cubic meters per hour. Then the depth of the wheat is increasing at the rate of: (View Answer Video)

**Question 3** : The length x of a rectangle is decreasing at the rate of 5cm/minute. and width y is increasing at the rate of 4cm/minute. When x=8cm and y=6 cm, find the rate of changes of:

(a) the area of the rectangle. (View Answer Video)

**Question 4** : 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: (View Answer Video)

**Question 5** : The rate of change of the area of a circle with respect to its radius r at r = 6 cm is : (View Answer Video)

**Question 1** : Differentiate the function with respect to x. (View Answer Video)

**Question 2** : Differentiate the function with respect to x. (View Answer Video)

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

**Question 4** : Find for the function . (View Answer Video)

**Question 5** : Differentiate the function w.r.t.x . (View Answer Video)