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

Expert Teacher provides MCQ Solutions for CBSE Maths 12 Science Vector Algebra 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 Vector Algebra 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:**

** Find the angle between two vectors a and b with magnitudes and 2 respectively, having **

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

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

**Question 1** : Find a vector in the direction of vector which has magnitude 8 unit. (View Answer Video)

**Question 2** : Find the vector quantities :

(i) Work (ii) Force

(iii) Velocity (iv) Displacement. (View Answer Video)

**Question 3** : 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 4** : Find a unit vector in the direction of (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** : The cartesian equation of a line is , write its vector form. (View Answer Video)

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

**Question 3** : If the equation of a line AB is then, find the direction cosines of a line parallel to AB. (View Answer Video)

**Question 4** : 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 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** : Find the value of t, if . (View Answer Video)

**Question 2** : Find the value of Y, if and . (View Answer Video)

**Question 3** : Find the value of x, from the equation: . (View Answer Video)

**Question 4** : If, find the value of x. (View Answer Video)

**Question 5** : Find the inverse of the matrix, . (View Answer Video)

**Question 1** : If E and F be two evets such that , , find if E and F are independent events. (View Answer Video)

**Question 2** : A die is rolled. If E= (1, 3, 5), F(2, 3) and G= {2, 3, 4, 5}, find (a) . (View Answer Video)

**Question 3** : One card is drawn from a pack of 52 cards. Find the probability of getting a jack of hearts:

(View Answer Video)

**Question 4** : A bag contains 3 red and 7 black balls. 2 balls are selected at random one by one without replacement. If the second selected ball happens to be red, what is the probability that the first selected ball is also red? (View Answer Video)

**Question 5** : A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability distribution of number of successes. Hence, find the mean of the distribution. (View Answer Video)