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# CBSE Vector Algebra Maths 12 Science Solutions for MCQ in English

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:

Solution Video in English:

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

## Similar Questions from CBSE, 12th Science, Maths, Vector Algebra

Question 1 : Find the scalar quantities :
(i)     Work                     (ii)      Force

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)

### Application of Integrals

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:

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)

### Application of Derivatives

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)