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

Expert Teacher provides Matrices Maths 12 Science CBSE 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:**

** Find the value of c from the equation: . **

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

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

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

**Question 2** : Using elementary transformation, find the inverse of the matrix . (View Answer Video)

**Question 3** : Given, , find the value of w. (View Answer Video)

**Question 4** : If , find (x-y). (View Answer Video)

**Question 5** : Compute: . (View Answer Video)

**Question 1** : A card from a pack of 52 playing card is lost. From the remaining cards of the pack, three cards are drawn at random (without replacement) and are found to be all spades. Find the probability of the lost card being a spade. (View Answer Video)

**Question 2** : Three persons A, B and C apply for a job of Manager in a Private company. Chance of their selection (A, B and C) are in the ratio 1:2:4. The probability that A, B, and C can introduce changes to improve profits of company are 0.8, 0.5 and 0.3 respectively, if the changes does not take place, find the probability that is due to the appointment of C. (View Answer Video)

**Question 3** : Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls. Two balls are transferred at random from Bag I to Bag II and then a ball is drawn from Bag II. The ball so drawn is found to be red in colour. Find the probability that the transferred balls were both black. (View Answer Video)

**Question 4** : Find the mean, the variance and the standard deviation of the number of doublets in three throws of a pair of dice. (View Answer Video)

**Question 5** : The probabilities of two students A and B coming to the school in time are and respectively. Assuming that the events ' A coming in time ' and

' B coming in time ' are independent. Find the probability of only one. Write of them come in time atleast one advantage of coming to school in time. (View Answer Video)

**Question 1** : If a lines makes angle and with the positive directions of x-axis and z-axis respectively, then find the angle that it makes with the y-axis. (View Answer Video)

**Question 2** : Find the angle between line and the plane 2x - y + 2z -13 = 0. (View Answer Video)

**Question 3** : Find the distance between the planes 2x+3y+4z=10 and 4x+6y+8z=18. (View Answer Video)

**Question 4** : Find the direction cosines of the line (View Answer Video)

**Question 5** : Find the co-ordinates of the point, where the line intersects the plane x-y+z-5=0. Also find the angle between the line and the plane. (View Answer Video)

**Question 1** : Find the integral of the function . (View Answer Video)

**Question 2** : Evaluate : . (View Answer Video)

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

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

**Question 5** : Evaluate : (View Answer Video)