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

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

** Find the distance between the planes 2x+3y+4z=10 and 4x+6y+8z=18. **

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

**Question 1** : If a line makes angles with the positive direction of co-ordinate axes, then write the value of (View Answer Video)

**Question 2** : Find the distance of the point (-1, -5, -10) from the point of intersection of the line joining the points A(2, -1, 2) and B(5, 3, 4) with the plane x - y + z = 5. (View Answer Video)

**Question 3** : Find the distance of the point from the plane 3x + y - z + 2+0 measured parallel to the line Also, find the foot of the perpendicular from the given point upon the given plane. (View Answer Video)

**Question 4** : Write the sum of intercepts cut off by the plane on the three axes. (View Answer Video)

**Question 5** : Find the angle between the lines whose direction ratios are a, b, c and b - c, c - a, a - b. (View Answer Video)

**Question 1** : Find two positive numbers whose sum is 16 and the sum of whose cubes is minimum. (View Answer Video)

**Question 2** : The slope of the tangent to the curve at the point (2,-1) is _______________. (View Answer Video)

**Question 3** : 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 4** : The slope of the tangent to the curve at the point (2, -1) is : (View Answer Video)

**Question 5** : The slope of the normal to the curve at x = 0 is :

(View Answer Video)

**Question 1** : Let defined as f(x) = x be an identity function. Then, (View Answer Video)

**Question 2** : What type of function is the sine function in R? (View Answer Video)

**Question 3** : Let R be the relation on the set {1, 2, 3, 4} given by R = {(1, 2), (2, 2), (1, 1), (4, 4), (1, 3), (3,3), (3,2)}. then R is, (View Answer Video)

**Question 4** : Number of binary operations on the set { a, b} are: (View Answer Video)

**Question 5** : Let * be the binary operation on N given by a * b = LCM of a and b. Find 20 * 16. (View Answer Video)

**Question 1** : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)