Is it possible to use latex using the dollar syntax here? Let me try
1) Using the tex tag
2) Using the dollar syntax
$\latex \int_a^b f(x)\, dx$
3) Using the double dollar syntax
$$\latex \int_a^b f(x)\, dx$$
4) Using the display mode math
\[\latex \int_a^b f(x)\, dx\]
5) Using the slash parentheses syntax
\(\latex \int_a^b f(x)\, dx\)