Ch-1 Relations and Functions DPP02 Q 1. Let A be the set of all human beings in a town at a particular time. Determine whether each of the following relations are reflexive, symmetric and transitive: (i) R = {(x,y) : x and y work at the same place } (ii) R = {(x, y): …
TOPIC WISE DPPDPP-O1 1. In each of the following systems of equations determine whether the system has a unique solution, no solution or infinitely many solutions. (i) 2x + 3y = 7 (ii) 6x + 5y = 11 (iii) -3x + 4y = 5 6x + 5y = 11 9x +y = …
Class 11th maths Permutations and Combinations JEE MAIN PYQ 1. All possible numbers are formed using the digits 1, 1, 2, 2, 2, 2, 3, 4, 4 taken all at a time. The number of such numbers in which the odd digits occupy even places is [JEE Main 2019, 8 April Shift-I] (a) 180 (b) …
Class 11 Maths Chapter 1 Sets JEE Main PYQ SETS(JEE MAIN PYQ) Q1.In a class of 140 students numbered 1 to 140, all even numbered students opted Mathematics course, those whose number is divisible by 3 opted Physics course and those whose number is divisible by 5 opted Chemistry course. Then the number of students …
Unacademy is an online education platform. unacademy offers various online courses in which there will be live classes and in case you missed a live class then you can watch the recorded lectures of an educator. Although if you want to prepare for Boards or even for JEE Mains or any state level entrance exam …
EXAMPLE 1 Show that every positive even integer is of the form 2q, and that every positive odd integer is of the form 2q + 1, where q is some integer. [NCERT] EXAMPLE 2 Show that any positive integer is of the form 3q or, 3q + 1 or, 3q + 2 for some integer …