NCERT 2022 | संबंध एवं फलन - L8 | relation and function | Class 11 गणित | Jitendra Sir | 10 AM |

Class 12 Maths | Chapter 1 | संबंध एवं फलन | Important Questions | Quick Revision

Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range. (i) {(2," "1)," "(5," "1)," "(8," "1)," "(11 ," "1)," "(14 ," "1)," "(17 ," "1)} (ii) {(2," "1)," "(4," "2)," "(6," "3)," "(8," "4),"

Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range. (i) {(2,1),(5,1),(8,1),(11,1),(14,1),(17,1)} (ii) {(2,1),(4,2),(6,3),(8,4),(10,5),(12,6),(14,7)} (iii) {(1,3),(1,5),(2,5)}

There are 5 students in class 10, 6 students in class 11 and 8 students in class 12. If the number of ways, in which 10 students can be selected from them so as to include at least 2 students from each class and at most 5 students from the total 11 students of class 10 and 11 is 100 k, then k is equal to _______.

which of the following relation are functions and give reason if it is a function determine its domain and range {(2,1),(4,2),(6,3),(8,4),(10,5),(12,6),(14,7)}

Which of the following relations are functions? Give reasons. In case of a function, find its domain and range. (i) f={(1 ,3),(1,5),(2,3),(2,5)} (ii) g={(2,1),(5,1),(8,1),(11,1)} (iii) h={(2,1),(4,2),(6,3),(8,4),(10,5),(12,6)}

In class 12 there are 8 students. In class 11 there are 6 students .In class 10 there are 5 students . Total ways of selecting 10 students , such that there are at least 2 students from each class and at most 5 students from 11 students of Class 10 and 11 combined is 100k. Then find value of k

In a class there are 10 boys and 8 girls.The teacher wants to select either a boy or a girl to represent the class in a function.The number of ways the teacher can make this selection.

Four pipes can fill a reservoir in 15, 20, 30 and 60 hours respectively. The first pipe was opened at 8 am second at 9 am third at 10 am and fourth at 11 am. When will the reservoir be full? 1 pdotmdot b. 2 pdotmdot c. 2. 30 pdotmdot d. 3 pdotmdot

A train starts from Delhi at 6 : 00 AM and reaches Ambala Cantt at 10 AM. The other train starts from Ambala Cantt at 8 AM and reaches Delhi at 11:30 PM. If the distance between Delhi and Ambala Cantt. is 200 km, then at what time did the two trains meet each other ?