mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">f</mi><mfenced separators="|"><mi mathvariant="normal">x</mi></mfenced><mo>=</mo><mfrac><mrow><mi>sin</mi><mo>(</mo><msup><mi mathvariant="normal">e</mi><mrow><mi mathvariant="normal">x</mi><mo>-</mo><mn>2</mn></mrow></msup><mo>-</mo><mn>1</mn><mo>)</mo></mrow><mrow><mi>In</mi><mo>(</mo><mi mathvariant="normal">x</mi><mo>-</mo><mn>1</mn><mo>)</mo></mrow></mfrac><mo>,</mo></math>