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

Expert Teacher provides Maths Three Dimensional Geometry CBSE 12 Science MCQ English Solutions. 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 Three Dimensional Geometry 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:**

** What is the distance of the point (p, q, r) from the x-axis ? **

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

**Question 1** : Find the angle between the lines whose direction ratios are a, b, c and b - c, c - a, a - b. (View Answer Video)

**Question 2** : Find the equation of the plane with intercept 3 on the y-axis and parallel to ZOX plane. (View Answer Video)

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

**Question 4** : Find the angle between the lines and (View Answer Video)

**Question 5** : 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 1** : Points (a,a,c),(1,0,1) and (c,c,b) are collinear if: (View Answer Video)

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

**Question 3** : If find |A|. (View Answer Video)

**Question 4** : A system of linear equations AX = B is said to be inconsistent, if the system of equations has, (View Answer Video)

**Question 5** : Evaluate the determinants in :. (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 bag X contains 4 white balls and 2 black balls, while another bag Y contains 3 white balls and 3 black balls. Two balls are drawn (without replacement) at random from one of the bags and were found to be one white and one black. Find the probability that the balls were drawn from bag Y. (View Answer Video)

**Question 2** : A and B throw a pair of dice alternately. A wins the game if he gets a total of 9 and B wins if he gets a total of 7. If A starts the game, find the probability of winning the game by B. (View Answer Video)

**Question 3** : Three numbers are selected at random (without replacement ) from first six positive integers. Let X denote the largest of the three numbers obtained. Find the probability distribution of X. Also, find the mean and variance of the distribution. (View Answer Video)

**Question 4** : If E and F are two events such that,

, Find P(E or F). (View Answer Video)

**Question 5** : One card is drawn from a pack of 52 cards. Find the probability of getting a red card:

(View Answer Video)