1.Set Theory
easy

જો $Q = \left\{ {x:x = \frac{1}{y},\,{\rm{where\,\, }}y \in N} \right\}$ ,તો

A

$0 \in Q$

B

$1 \in Q$

C

$2 \in Q$

D

${2 \over 3} \in Q$

Solution

(b) ${1 \over y} \neq 0,{1 \over y} \neq 2,{1 \over y} \neq {-2 \over 3}, [y \in N]$

${1 \over y}$ can be   $1, [ y\ can\ be\ 1].$

Standard 11
Mathematics

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