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Question Number 73203 by Tanmay chaudhury last updated on 08/Nov/19

Commented by kaivan.ahmadi last updated on 08/Nov/19

xsin(1/x)=1⇒sin(1/x)=(1/x)⇒(1/x)=0⇒there is no root so A has exactly one element, A={0}

xsin1x=1⇒sin1x=1x⇒1x=0⇒thereisnorootsoAhasexactlyoneelement,A={0}

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