<https://jntuupdates.com/1-2-semester-notes-r19-it-unit-3-mathematics-iii/#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://jntuupdates.com/1-2-semester-notes-r19-it-unit-3-mathematics-iii/>