ICSE Class 6 Answered
State with reasons which of the following sets are empty :
(i) Q = A cube with 8 faces
(ii) B = { x | x2 = 0, x is an integer}
(iii) A = { p | p is a positive integer and; p + 1 = 0}
Asked by Topperlearning User | 11 Aug, 2014, 02:14: PM
Expert Answer
(i) Q = A cube with 8 faces
Q = {
}, as a cube has only 6 faces
(ii) B = { x | x2 = 0, x is an integer}
B = {
}, since square of any integer is never zero.
(iii) A = { p | p is a positive integer and p + 1 = 0}
A = {}, since p being a positive integer, p + 1 = 0 is not possible.
Answered by | 11 Aug, 2014, 04:14: PM
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