From Mr. V Wiki Math
Basics
To render any math equation, the math equation must be between <math></math> i.e., <math>f(x)=x^2</math> gives
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Common math commands =
Superscript: <math>x^{5+y}</math> rendered: 
Subscript: <math>x_{5+t}</math> rendered:
Super & Sub: <math>x_{5+t}^{5+y}</math> rendered:
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