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20/09/2026

Class 12 || Relations and Functions Ex - 1.1 || Question no.1 Determine whether each of the following relations are reflexive, symmetric and transitive:
(v) Relation R in the set A of human beings in a town at a particular time given by
(d) R={(x, y): x is wife of y}
(e) R={(x, y): x is father of y}
https://youtu.be/E-RCwBlGDR4

20/09/2026

Class 12 || Relations and Functions Ex - 1.1 || Question no.1 Determine whether each of the following relations are reflexive, symmetric and transitive:
(v) Relation R in the set A of human beings in a town at a particular time given by
(c) R={(x, y): x is exactly 7 cm taller than y}
https://youtu.be/opxOrSNcyIo

14/09/2026

Class 12 || Relations and Functions Ex - 1.1 || Question no.1 Determine whether each of the following relations are reflexive, symmetric and transitive:
(v) Relation R in the set A of human beings in a town at a particular time given by
(a) R={(x, y): x and y work at the same place}
(b) R={(x, y): x and y live in the same locality}
(c) R={(x, y): x is exactly 7 cm taller than y}
(d) R={(x, y): x is wife of y}
(e) R={(x, y): x is father of y}
https://youtu.be/JqkWV2i5hIA

13/09/2026

Class 12 || Relations and Functions Ex - 1.1 || Question no.1 Determine whether each of the following relations are reflexive, symmetric and transitive:
(iv) Relation R in the set Z of all integers defined as R = {(x, y) : x-y is an integer}
https://youtu.be/IYBmZA2p_Zc

11/09/2026

Class 12 || Relations and Functions Ex - 1.1 || Question no.1 Determine whether each of the following relations are reflexive, symmetric and transitive:
(iii) Relation R in the set A = {1, 2, 3, 4, 5, 6} as R = { (x, y) : y is divisible by x}
https://youtu.be/aG6BkLVotP0

10/09/2026

Class 12 || Relations and Functions Ex - 1.1 || Question no.1 Determine whether each of the following relations are reflexive, symmetric and transitive:
(i) Relation R in the set A = {1, 2, 3, ..., 13, 14} defined as R = { (x, y) : 3x-y=0}
(ii) Relation R in the set N of natural numbers defined as R = { (x, y) : y=x+5 and x 4}
https://youtu.be/tIxB2DmxGW0

06/09/2026

Class 12 || Chapter 11 Three Dimensional Geometry Miscellaneous Exercise || Question no.5 Find the vector equation of the line passing through the point (1, 2, -4) and perpendicular to the two lines:
x-8/3=y+19/-16=z-10/7 and x-15/3=y-29/8=z-5/-5
https://youtu.be/0hT1sGNlH4A

06/09/2026

Class 10 || Statistics Ex:-13.3 || Question no.7 The distribution below gives the weights of 30 students of a class. Find the median weight of the students
https://youtu.be/hk7ZJYBOq-w

05/09/2026

Class 12 || Chapter 11 Three Dimensional Geometry Miscellaneous Exercise || Question no.4 Find the shortest distance between lines r=6î+2ĵ+2k̂+λ(î-2ĵ+2k̂) and r=-4î-k̂+μ(3î-2ĵ-2k̂).
https://youtu.be/yw0NWtEoeo8

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