MathematicsMedium58×since 2004Q5390The relation R={(a,b):gcd(a,b)=1,2a≠b,a,b∈Z}\mathrm{R = \{ (a,b):\gcd (a,b) = 1,2a \ne b,a,b \in \mathbb{Z}\}}R={(a,b):gcd(a,b)=1,2a=b,a,b∈Z} is :Areflexive but not symmetricBtransitive but not reflexiveCsymmetric but not transitiveDneither symmetric nor transitiveCheck answerSkip