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

Expert Teacher provides CBSE Maths 12 Science Matrices MCQ 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 Matrices 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 for any square matrix A, then write the value of |A|. **

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

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

**Question 1** : Find the value of x, from the equation: . (View Answer Video)

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

**Question 3** : Compute: . (View Answer Video)

**Question 4** : Find the transpose of the matrix: . (View Answer Video)

**Question 5** : If , find (x-y). (View Answer Video)

**Question 1** : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)

**Question 1** : A balloon, which always remains spherical on inflation, is being inflated by pumping in 900 cubic centimetres of gas per second. Find the rate at which the radius of the balloon increases when the radius is 15 cm. (View Answer Video)

**Question 2** : Find approximate value of (View Answer Video)

**Question 3** : Equation of normal to the curve x+y=x^y where it cuts x-axis; is (View Answer Video)

**Question 4** : A stone is dropped into a quiet lake and waves move in circles at a speed of 4 cm per second. At the instant when the radius of the circular waves is 10 cm, how fast is the enclosed area increasing? (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** : Form the differential equation of equation y = a cos 2x + b sin 2x, where a and b are constant. (View Answer Video)

**Question 2** : Write the differential equation representing the curve where a is an arbitrary constant. (View Answer Video)

**Question 3** : If x cos(a + y) = cos y, then prove that

Hence show that (View Answer Video)

**Question 4** : Form the differential equation of the family of circles in the second quadrant and touching the co-ordinate axes. (View Answer Video)

**Question 5** : Obtain the differential equation of all the circles of radius r. (View Answer Video)