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

Expert Teacher provides Maths Vector Algebra CBSE 12 Science 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 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 Answer in a narrative video format.

** Question:**

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

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

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

**Question 2** : Write the value of for which the vectors and are parallel vectors. (View Answer Video)

**Question 3** : Find a vector in the direction of vector which has magnitude 21 units. (View Answer Video)

**Question 4** : Find a unit vector parallel to the sum of vectors and (View Answer Video)

**Question 5** : Find if the vectors and are coplanar. (View Answer Video)

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

**Question 2** : Find the integral of the function . (View Answer Video)

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

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

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

**Question 1** : Compute P(A/B) if P(B) =0.5 and P(AB)=0.32. (View Answer Video)

**Question 2** : 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 3** : 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 4** : One card is drawn from a pack of 52 cards. Find the probability of getting a jack of hearts:

(View Answer Video)

**Question 5** : If each element of a second-order determinant is either zero or one, what is the probability that the value of the determinant is positive? (View Answer Video)

**Question 1** : Write the direction ratio's of the vector where and (View Answer Video)

**Question 2** : Find the angle between the lines whose direction ratios are a, b, c and b - c, c - a, a - b. (View Answer Video)

**Question 3** : The equation of a line AB is Write the direction cosines of a line parallel to the above line. (View Answer Video)

**Question 4** : Find the equation of the plane that contains the point (1, -1, 2) and is perpendicular to both the planes 2x + 3y - 2z = 5 and x + 2y - 3z = 8. Hence find the distance of point P(-2, 5, 5) from the plane obtained above. (View Answer Video)

**Question 5** : If a line marks angles and with x, y and z-axis respectively, where is acute, then find . (View Answer Video)