1<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> 2 <mrow> 3 <mtext>sinh</mtext> 4 <mfenced> 5 <mrow> 6 <mi>x</mi> 7 </mrow> 8 </mfenced> 9 <mspace width="1em"/> 10 <mo>=</mo> 11 <mspace width="1em"/> 12 <mfrac> 13 <mrow> 14 <mi>exp</mi> 15 <mfenced> 16 <mrow> 17 <mi>x</mi> 18 </mrow> 19 </mfenced> 20 <mo>−</mo> 21 <mi>exp</mi> 22 <mfenced> 23 <mrow> 24 <mo>−</mo> 25 <mi>x</mi> 26 </mrow> 27 </mfenced> 28 </mrow> 29 <mn>2</mn> 30 </mfrac> 31 </mrow> 32</math> 33 34