CBSE Three Dimensional Geometry Maths 12 Science Answers for MCQ in English

CBSE Three Dimensional Geometry Maths 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 CBSE Three Dimensional Geometry Maths 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 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 Answer in a narrative video format.

Question:

If a line has direction ratios 2, -1, -2, then what are its direction cosines?

Answer Video in English:

Similar Questions from CBSE, 12th Science, Maths, Three Dimensional Geometry

Question 1 : Write the sum of intercepts cut off by the plane  Question  on the three axes.  (View Answer Video)

Question 2 : If lines Questionand  Question  intersect, then find the value of k and hence find the equation of plane containing these lines. (View Answer Video)

Question 3 : Write the direction ratio's of the vector Question where Question and Question (View Answer Video)

Question 4 : Find the distance between the point (7, 2, 4) and the plane determined by the points A(2, 5, -3), B(-2, -3, 5) and C(5, 3, -3). (View Answer Video)

Question 5 : What is the distance of the point (p, q, r) from the x-axis ? (View Answer Video)

Questions from Other Chapters of CBSE, 12th Science, Maths

Vector Algebra

Question 1 : Find the scalar quantities from the following:
(i) Time period          (ii) Distance          (iii) Force
(iv) Velocity               (v) Work done          (View Answer Video)

Question 2 :  If Questionand Questiondenote the position vectors of points A and B respectively and C is a point on AB such that AC = 2 CB, then write the position vector of C.  (View Answer Video)

Question 3 : Find the vector quantities from the following:
(i) Time period          (ii) Distance          (iii) Force
(iv) Velocity               (v) Work done          
  (View Answer Video)

Question 4 :  Write a vector in the direction of the vector Question that has magnitude 9 units.   (View Answer Video)

Question 5 : The two vectors Questionand Questionrepresent the two sides AB and AC, respectively of QuestionFind the length of the median
though A.  (View Answer Video)

Differential Equations

Question 1 : Solve the differential equation Question (View Answer Video)

Question 2 : Find the particular solution of the differential equation :
Question  when x = 1, Question  (View Answer Video)

Question 3 : Solve the following differential equation :
 Question (View Answer Video)

Question 4 : Write the degree of the differential equation : Question (View Answer Video)

Question 5 : Write the degree of the differential equation : Question (View Answer Video)

Application of Derivatives

Question 1 : Find the approximate value of f(5.001) whereQuestion. (View Answer Video)

Question 2 : The radius of an air bubble is increasing at the rate of Question. At what rate is the volume of the bubble increasing when its radius is 1 cm? (View Answer Video)

Question 3 : If,Question then the approximate value of f(3.02) is _________. (View Answer Video)

Question 4 : Find two numbers whose sum is 24 and whose product is as large as possible. (View Answer Video)

Question 5 : A tank with a rectangular base and rectangular sides, open at the top is to be constructed so that its depth is 2m and volume isQuestion If the building of tank costs Rs.70 per sq meter for the base and Rs.45 per sq meter for sides. What is the cost of least expensive? (View Answer Video)