12 Science CBSE Answers for MCQ Maths Relations and Functions in English to enable students to get Answers in a narrative video format for the specific question.
Expert Teacher provides 12 Science CBSE Answers for MCQ Maths Relations and Functions 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 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 Answer in a narrative video format.
Question:
Answer Video in English:
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Question 1 : Let be defined as f(x) = 3x. Choose the correct answer. (View Answer Video)
Question 2 : The function, f(x) = 2x + 1 is, (View Answer Video)
Question 3 : Let defined as f(x) = 5 be a constant function. Then its range is (View Answer Video)
Question 4 : Consider a binary operation * on N defined as . Choose the correct answer. (View Answer Video)
Question 5 : A function defined as is, (View Answer Video)
Question 1 : Find the approximate change in the surface area of a cube of side x meters caused by decreasing the side by 1%. (View Answer Video)
Question 2 : The slope of the normal to the curve at x = 0 is :
(View Answer Video)
Question 3 :
The total revenue in Rupees received from the sale of 'x' units of a product is given by :
The marginal revenue, when x=15 is :
Question 4 : Find two positive numbers x and y such that x+y=60 and is maximum. (View Answer Video)
Question 5 : Find two numbers whose sum is 24 and whose product is as large as possible. (View Answer Video)
Question 1 : Transpose of a rectangular matrix is a, (View Answer Video)
Question 2 : Find the equation of the line joining (3, 1) and (9, 3) using determinants. (View Answer Video)
Question 3 : Which of the following is correct? (View Answer Video)
Question 4 : Evaluate the determinant: . (View Answer Video)
Question 5 : If A is a square matrix of order 3 and |A| = 5 then |3A| = ? (View Answer Video)
Question 1 : A speaks truth in 75% of the cases, while B in 90% of the cases. In what percent of cases are they likely to contradict each other in stating the same fact? Do you think that statement of B is always true? (View Answer Video)
Question 2 : 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 3 : A bag contain 2 red, 6 black and 8 green balls. A ball is drawn at random from the bag. Find the probability of black balls:
(View Answer Video)
Question 4 : The probabilities of two students A and B coming to the school in time are and respectively. Assuming that the events ' A coming in time ' and
' B coming in time ' are independent. Find the probability of only one. Write of them come in time atleast one advantage of coming to school in time. (View Answer Video)
Question 5 : If E and F are two events such that,
, Find P(not E and not F). (View Answer Video)