ICSE Class 7 Answered
State with reasons which of the following sets are empty :
(i) A = { a | a is a positive integer and a + 1 = 0}
(ii) B = { x | x2 = 0, x is an integer}
(iii) Q = A cube with 8 faces
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
(i) A = { a | a is a positive integer and a + 1 = 0}
A = {
}, since a being a positive integer , a + 1 = 0 is not possible.
(ii) B = { x | x2 = 0, x is an integer}
B = {} , since square of any integer is never zero.
(iii) Q = A cube with 8 faces
Q = {} , as a cube has only 6 faces
Answered by | 04 Jun, 2014, 03:23: PM
ICSE 7 - Maths
Asked by srmsuchi | 10 Apr, 2019, 11:37: AM
ANSWERED BY EXPERT
