12 Science CBSE Solutions for MCQ Maths Relations and Functions in English to enable students to get Solutions in a narrative video format for the specific question.
Expert Teacher provides 12 Science CBSE Solutions for MCQ Maths Relations and Functions 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 Relations and Functions 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 )
Question 1 : If f(x) = ax + b and g(x) = cx + d, then f[g(x)] – g[f(x)] is equivalent to, (View Answer Video)
Question 2 : Let be defined as
. Choose the correct answer. (View Answer Video)
Question 3 : If is defined by
, write f(f(x)). (View Answer Video)
Question 4 : Let * be the binary operation on N given by a * b = LCM of a and b. Find 5 * 7. (View Answer Video)
Question 5 : The number of binary operations which can be defined on the set is, (View Answer Video)
Question 1 : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)
Question 1 : If and
find
if E and F are independent events. (View Answer Video)
Question 2 : Assume that the chances of a patient having a heart attack are 40%. Assume that a meditation and yoga course reduces the risk of heart attack by 30% and the prescription of certain drugs and certain restrictions reduces the risk by 25%. At a time, a patient choses only one of the two options with equal probabilities. After going through one of the two options, the patient is selected at random who is suffering from a heart attack. Find the probability that the patient followed a course of meditation and yoga. Write the value referred here. (View Answer Video)
Question 3 : One card is drawn from a pack of 52 cards. Find the probability of getting a red card:
(View Answer Video)
Question 4 : A die is rolled. If E= (1, 3, 5), F(2, 3) and G= {2, 3, 4, 5}, find . (View Answer Video)
Question 5 : A man is known to speak the truth 3 out of 5 times. He throws a die and reports that it is 1. Find the probability that it is actually 1. (View Answer Video)
Question 1 : Find the distance of the plane : 3x - 4y + 12z = 3 from the origin. (View Answer Video)
Question 2 : Find the vector equation of the plane which is at a distance of 5 units from the origin and normal to the plane is (View Answer Video)
Question 3 : Find the angle between line and the plane 2x - y + 2z -13 = 0. (View Answer Video)
Question 4 : Find the vector and cartesian forms of the equation of the plane passing through the point (1, 2, -4) and parallel to the lines and
Also, find the distance of the point (9, -8, -10) from the plane thus obtained. (View Answer Video)
Question 5 : The equation of a line AB is Write the direction cosines of a line parallel to the above line. (View Answer Video)