The <msqrt> MathML element is used to display square roots (no index is displayed). The square root accepts only one argument, which leads to the following syntax: <msqrt> base </msqrt>.
This element accepts the global MathML attributes.
<math display="block">
<msqrt>
<mi>x</mi>
</msqrt>
</math><mroot> (Radical with an index)