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

Expert Teacher provides CBSE Matrices Maths 12 Science Answers for MCQ 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 Matrices 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:**

** Using elementary transformation, find the inverse of the matrix . **

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

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

**Question 1** : Given, , find the value of x. (View Answer Video)

**Question 2** : Let Find 3A - C. (View Answer Video)

**Question 3** : Find the transpose of the matrix: . (View Answer Video)

**Question 4** : Let Find AB. (View Answer Video)

**Question 5** : Find the value of x, if . (View Answer Video)

**Question 1** : Find the vector equation of the line passing through the point (1, 2, 3) and parallel to the planes and

(View Answer Video)

**Question 2** : Find the vector equation of a plane which is at a distance of 5 units from the origin and its normal vector is (View Answer Video)

**Question 3** : The cartesian equation of a line is , write its vector form. (View Answer Video)

**Question 4** : Find the co-ordinates of the point where the line through the points A(3, 4, 1) and B(5, 1, 6) crosses the XY-plane. Also find angle which this line makes with the XZ-plane. (View Answer Video)

**Question 5** : If a line makes angles with the positive direction of co-ordinate axes, then write the value of (View Answer Video)

**Question 1** : Write the degree of the 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** : Form the differential equation of equation y = a cos 2x + b sin 2x, where a and b are constant. (View Answer Video)

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

**Question 5** : Find the differential equation of the family of lines passing through the origin. (View Answer Video)

**Question 1** : Find the direction cosines of the vector joining the points A(1, 2, -3) and B(-1, -2, 1) directed from B to A. (View Answer Video)

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

**Question 3** : Find the position vector of a point which divides the join of points with position vectors and externally in the ration 2:1. (View Answer Video)

**Question 4** : Find the vector quantities :

(i) Work (ii) Force

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

**Question 5** : Find a unit vector in the direction of (View Answer Video)