Maths 12 Science CBSE Three Dimensional Geometry Answers for MCQ in English to enable students to get Answers in a narrative video format for the specific question.
Expert Teacher provides Maths 12 Science CBSE Three Dimensional Geometry 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:
Answer 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 : What is the distance of the point (p, q, r) from the x-axis ? (View Answer Video)
Question 3 : Find the direction cosines of the line (View Answer Video)
Question 4 : If the cartesian equations of a line are write the vector equation for the line. (View Answer Video)
Question 5 : Write the equation of the straight line through the point and parallel to z-axis. (View Answer Video)
Question 1 : Find the sum of the vectors and (View Answer Video)
Question 2 : Find if and (View Answer Video)
Question 3 : Find the projection of the vector on the vector (View Answer Video)
Question 4 : Find the scalar quantities from the following:
(i) Time period (ii) Distance (iii) Force
(iv) Velocity (v) Work done (View Answer Video)
Question 5 : P and Q are two points with position vectors and respectively. Write the position vector of a point R which divides the line segment PQ externally in the ratio 2:1. (View Answer Video)
Question 1 : If A and B are two events such that P(A)=0.3, P(B)=0.6 and P(B/A)=0.5, find P(AB). (View Answer Video)
Question 2 : Out of a group of 30 honest people, 20 always speak the truth. Two persons are selected at random from the group. Find the probability distribution of the number of selected persons who speak the truth. Also find the mean of the distribution. What values are described in this question? (View Answer Video)
Question 3 : A pair of coins is tossed once. Find the probability of showing atleast one head. (View Answer Video)
Question 4 : Probability of solving specific problem independently by A and B are and respectively. If both try to solve the problem, independently, then find the probability that exactly one of them solves the problem. (View Answer Video)
Question 5 : A bag I contains 5 red and 4 white balls and a bag II contains 3 red and 3 white balls. Two balls are transferred from the bag I to the bag II and then one ball is drawn from bag II. If the ball drawn from the bag II is red, then find the probability that one red ball and one white ball are transferred from the bag I to the bag II. (View Answer Video)
Question 1 : If and , find . (View Answer Video)
Question 2 : Find the second order derivative of the function . (View Answer Video)
Question 3 : Differentiate the function with respect to x. (View Answer Video)
Question 4 : Using the fact that and the differentiation, obtain the sum formula for cosines. (View Answer Video)
Question 5 : Differentiate w.r.t.x the function , for some constant a and b. (View Answer Video)