Discuss the role of XPATH - XML

Discuss the role of XPATH.

XPATH is used to scan the XML document for navigation of elements and attributes. It contains a library of standard functions string ad numeric values. For navigation, XPATH makes use of path expressions to select nodes or sets of nodes in a XML document.
Explain the XSLT data model - XML
XSLT shares the same data model of XPATH with some additions. XSLT accepts a XSLT stylesheet as an input and output is another XML, text or another document.......
Why the need for XHTML? - XML
If a script in an HTML document is not well formed, small devices like mobile phones fail to display the content properly......
Explain the XHTML syntax rules - XML
Some Syntax rules that need to be followed with XHTML are: That Attribute names must be in lower case, their values must be in quotes and their minimization is done away from usage.......
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