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

Expert Teacher provides CBSE Vector Algebra Maths 12 Science 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 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 if the vectors and are coplanar. **

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

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

**Question 1** : Find the scalar quantities :

(i) Work (ii) Force

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

**Question 2** : Find the angle between the vectors and (View Answer Video)

**Question 3** : Write a unit vector in the direction of the sum of vectors and (View Answer Video)

**Question 4** : Find the value of x and y so that the vectors and are equal. (View Answer Video)

**Question 5** : Find |a| and |b|, if (a + b).(a - b) = 8 and |a| = 8|b|. (View Answer Video)

**Question 1** : Using the method of integration, find the area of the region bounded by the lines 3x - 2y + 1 = 0, 2x + 3y -21 = 0 and x - 5y + 9 = 0. (View Answer Video)

**Question 2** : Find the area of the given curves and given lines:

and x-axis (View Answer Video)

**Question 3** : Using the method of integration, find the area of the triangular region whose vertices are (2, -2), (4, 3) and (1, 2). (View Answer Video)

**Question 4** :

Find the area of the given curves and given lines:

and x-axis

**Question 5** : Find the area of the smaller region bounded by the ellipse and the straight line 8x + 3y = 12. (View Answer Video)

**Question 1** : The normal at the point (1, 1) on the curve is: (View Answer Video)

**Question 2** : The function f is a differentiable function and satisfies the functional equation f(x) + f(y) = f(x + y) – xy – 1for every pair x, y of real numbers. If f(1) = 1, then the number of integers n ≠ 1 for which f(n) = n is_______________. (View Answer Video)

**Question 3** : If the radius of a sphere is measured as 9 m with an error of 0.03 m, then find the approximate error in calculating its surface area. (View Answer Video)

**Question 4** : Find two positive numbers x and y such that x+y=60 and is maximum. (View Answer Video)

**Question 5** : The maximum value of is, (View Answer Video)

**Question 1** : Find the angle between line and the plane 2x - y + 2z -13 = 0. (View Answer Video)

**Question 2** : If the equation of a line AB is then, find the direction cosines of a line parallel to AB. (View Answer Video)

**Question 3** : Write the vector equation of the plane passing through the point (a, b, c) and parallel to the plane (View Answer Video)

**Question 4** : Find the distance between the point (5, 4, -6) and its image in xy-plane. (View Answer Video)

**Question 5** : Write the vector equation of a line passing through the point (1, -1, 2) and parallel to the line whose equations are, (View Answer Video)