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

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

** if a, b, c are unit vectors such that a + b + c = 0, then find the value of a.b + b.c + c.a. **

** 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 if and (View Answer Video)

**Question 3** : 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 4** : 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 5** : Find a unit vector parallel to the sum of vectors and (View Answer Video)

**Question 1** : Find the particular solution of the differential equation given that When x =1. (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** : Write the differential equation representing the curve where a is an arbitrary constant. (View Answer Video)

**Question 4** : Find the general solution of the following differential equation :

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**Question 5** : Write the differential equation formed from the equation y = mx + c, where m and c are arbitrary constants.

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**Question 1** : Let * be the binary operation on N given by a * b = LCM of a and b. Find 20 * 16. (View Answer Video)

**Question 2** : Letbe defined as f(x) = 3x. (View Answer Video)

**Question 3** : The law a + b = b + a is called ______. (View Answer Video)

**Question 4** : If is defined by , write f(f(x)). (View Answer Video)

**Question 5** : Functions are defined respectively, by , find . (View Answer Video)

**Question 1** : Find the value of k, if the area of the triangle is 4 sq unit and vertices are (k, 0) (4, 0) (0, 2). (View Answer Video)

**Question 2** : If find |A|. (View Answer Video)

**Question 3** : Find the equation of the line joining (1, 2) and (3, 6) using determinants. (View Answer Video)

**Question 4** : Let A be a non-singular square matrix of order 3 * 3. Then | adj A | is equal to: (View Answer Video)

**Question 5** : Find the area of the triangle with vertices at the points (-2, -3), (3, 2), (-1, -8). (View Answer Video)