NCERT 2022 | संबंध एवं फलन - L13 | relation and function | Class 12 गणित | Jitendra Sir | 11 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),(10,5),(12,6),(14,7)} (iii) {(1,3),(1,5),(2,5)}

Class 12 Maths Chapter 1 Relations And Functions Important Questions | CBSE Board Quick Revision

Which of the following relations are functions ? Give reasons . In case of a functions find its domain and range . (i) f = {(-1,2) , (1,8) (2,11) , (3,14)} (ii) g = { (1,1) , (1,-1) , (4,2) , (9,3) , (16,4)} (iii) h={(a,b) , (b,c) , (c, d),(d,c)}

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?

If matrix A=[[1,2,3], [4,1,2], [1,-1,2]] B= [[2,1,3], [4,1,-1], [2,2,3]] C= [[14], [12], [2]] D= [[13], [11], [14]]. When X= [[x], [y],[z]] is such that solutions of equations AX=C and BX=D represents two points L and M in three dimensional space. If l' and M' are the reflection of points L and M in the plane x+y+z=9 then find values of L,M,L' and M'

In the following question two equations are given in variables x and y. you have to solve these equations and determine the relation between x and y. I. x^(2) - 14x + 13 = 0 II. y^(2) - 12 y + 11 = 0

Conside the matrices A=[(1,2,3),(4,1,2),(1,-1,1)] B=[(2,1,3),(4,1,-1), (2,2,3)] C=[(14),(12),(2)] D=[(13),(11),(14)]. Now x=[(x),(y),(z)]is such that solutions of equation AX=C and BX=D represent two points L andM respectively in 3 dimensional space. If L' and M' are hre reflections of L and M in the plane x+y+z=9 then find coordinates of L,M,L',M'

If A={9,10,11,12,13} and a function f:A to N is defined as f(n) =largest prime factor of n. If the range of f is B, then find B.

Let J = 1, K = 2, L = 5, M = 7, N = 11, O = 13, P = 17 . Find the letter to be inserted in the box in the relation given (N × ? + M) ÷ K = 31