CBSE MCQ Maths 12 Science Three Dimensional Geometry Solutions in English

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

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

The equation of a line AB is Question Write the direction cosines of a line parallel to the above line.

Solution Video in English:

Similar Questions from CBSE, 12th Science, Maths, Three Dimensional Geometry

Question 1 : Write the vector equation of a line passing through the point (1, -1, 2) and parallel to the line whose equations are,Question (View Answer Video)

Question 2 : A line passes through the point with position vector Questionand makes angles QuestionQuestionand Questionwith x, y and z-axis respectively. Find the equation of the line in the Cartesian form. (View Answer Video)

Question 3 : Find the equation of the plane passing through the line of intersection of the plane Question and  Question which is at a unit distance from the origin. (View Answer Video)

Question 4 : Find the vector equation of the plane with intercepts 3, -4 and 2 on x, y and z-axis respectively. (View Answer Video)

Question 5 : Find the angle between the planes 7x + 2y + 6z = 15 and 3x - y + 10z = 17. (View Answer Video)

Questions from Other Chapters of CBSE, 12th Science, Maths

Vector Algebra

Question 1 : Find |a| and |b|, if (a + b).(a - b) = 8 and |a| = 8|b|. (View Answer Video)

Question 2 : Evaluate the product (3a - 5b).(2a + 7b). (View Answer Video)

Question 3 : Find |x|, if for a unit vector a,(x - a).(x + a) = 12. (View Answer Video)

Question 4 : Find the vector quantities from the following:
(i) Time period          (ii) Distance          (iii) Force
(iv) Velocity               (v) Work done          
  (View Answer Video)

Question 5 : Find the magnitude of two vectors a and b having the same magnitude and such that the angle between them is Questionand their scalar product is 1/2. (View Answer Video)

Integrals

Question 1 : Evaluate : Question (View Answer Video)

Question 2 : Prove that : Question (View Answer Video)

Question 3 : Question (View Answer Video)

Question 4 : Question (View Answer Video)

Question 5 : Write the value of: Question (View Answer Video)

Probability

Question 1 : A speaks truth in 75% of the cases, while B in 90% of the cases. In what percent of cases are they likely to contradict each other in stating the same fact? Do you think that statement of B is always true?     (View Answer Video)

Question 2 : A bag A contains 4 black and 6 red balls and bag B 7 black and 3 red balls. A die is thrown. If 1 or 2 appears on it, then bag A is chosen, otherwise bag B. It two balls are drawn at random (without replacement) from the selected bag, find the probability of one of them being red and another black.        (View Answer Video)

Question 3 : If P(A)=0.8, P(B)=0.5 and Question=0.4, find Question. (View Answer Video)

Question 4 : A coin is biased so that the heads is 2 times as likely to occur as tail. If the coin is tossed twice, find the probability distribution of number of tails. Hence find the mean of the distribution.  (View Answer Video)

Question 5 : 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)