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:
Consider a binary operation * on N defined as . Choose the correct answer.
Solution Video in English:
You can select video Solutions from other languages also. Please check Solutions in ( Hindi )
Question 1 : If f is the greatest integer function and g is the modulus function . Write the value of g o f(-1/3) – f o g ( -1/3 ) . (View Answer Video)
Question 2 : Let defined as f(x) = x be an identity function. Then, (View Answer Video)
Question 3 : A function is surjective if and only if , (View Answer Video)
Question 4 : A function defined as f(x) = 5x is, (View Answer Video)
Question 5 : Let A ={1, 2, 3}. Then number of equivalence relations containing (1, 2) is: (View Answer Video)
Question 1 : If A is a symmetric matrix, then ? (View Answer Video)
Question 2 : If A is a square matrix of order 3 and |A| = 5 then |3A| = ? (View Answer Video)
Question 3 : Let , where . THhen (View Answer Video)
Question 4 : Which of the following is correct? (View Answer Video)
Question 5 : Find the equation of the line joining (3, 1) and (9, 3) using determinants. (View Answer Video)
Question 1 : 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 2 : A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability distribution of number of successes. Hence, find the mean of the distribution. (View Answer Video)
Question 3 : Three cards are drawn without replacement from a pack of 52 cards. Find the probability that the cards drawn are king, queen and jack respectively.
(View Answer Video)
Question 4 : In a school, there are 1,000 students, out of which 380 are girls. Out of 380 girls, 10% of the girls scored highest in GS. What is the probability that a student chosen randomly scored highest in GS given that the chosen student is a girl? (View Answer Video)
Question 5 : From a lot of 30 bulbs which includes 6 defectives, a sample of 4 bulbs is drawn at random one by one with replacement. Find the probability distribution of the number of defective bulbs. Hence find the mean of the distributions. (View Answer Video)
Question 1 : Evaluate :
(View Answer Video)
Question 2 : is equal to :
(View Answer Video)
Question 3 : is equal to :
(View Answer Video)
Question 4 : Write the principal value of (View Answer Video)
Question 5 : Write the principal value of (View Answer Video)