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

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

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

**Question 1** : Find the distance of the point (3, 4, 5) from the plane x + y + z = 2 measured parallel to the line 2x = y = z. (View Answer Video)

**Question 2** : Write the sum of intercepts cut off by the plane on the three axes. (View Answer Video)

**Question 3** : Write the distance between the parallel planes 2x - y + 3z = 4 and 2x - y + 3z = 18. (View Answer Video)

**Question 4** : Find the distance of the point (-1, -5, -10) from the point of intersection of the line joining the points A(2, -1, 2) and B(5, 3, 4) with the plane x - y + z = 5. (View Answer Video)

**Question 5** : If a line has direction ratios 2, -1, -2, then what are its direction cosines? (View Answer Video)

**Question 1** : Evaluate : . (View Answer Video)

**Question 2** : Find : (View Answer Video)

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

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

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

**Question 1** : Find the projection of the vector on the vector (View Answer Video)

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

**Question 3** : Find the scalar components of the vector with initial point A (2, 1) and terminal point B (-5, 7). (View Answer Video)

**Question 4** : 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 5** : Find the scalar quantities from the following:

(i) Time period (ii) Distance (iii) Force

(iv) Velocity (v) Work done (View Answer Video)

**Question 1** : From a lot of 30 bulbs which includes 6 defectives, a sample of 4 bulbs is drawn at random one by one with replacement. Find the probability distribution of the number of defective bulbs. Hence find the mean of the distributions. (View Answer Video)

**Question 2** : Four cards are drawn successively with replacement from a well shuffled deck of 52 cards. What is the probability that:

All the four cards are spades?

(View Answer Video)

**Question 3** : A bag contains 4 green and 6 white balls. Two balls are drawn one by one without replacement. If the second ball drawn is white, what is the probability that the first ball drawn is also white? (View Answer Video)

**Question 4** : A speaks truth in 60% of the cases, while B in 90% of cases. In what percent of cases are they likely to contradict each other in stating the same fact? In the cases of contradiction do you think, the statement B will carry more weight as he speaks truth in more number of cases than A? (View Answer Video)

**Question 5** : In a game, a man wins rupee five for number six and losses rupee one for any other number, when a fair die is thrown. The man decided to throw a die thrice but to quit as and when he gets a six. Find the expected value of the amount he wins/losses. (View Answer Video)