1<?xml version='1.0'?> 2<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN' 3 'http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd' 4 [<!ENTITY mathml 'http://www.w3.org/1998/Math/MathML'>]> 5<html xmlns='http://www.w3.org/1999/xhtml'> 6<head><title>acosh4</title> 7<!-- MathML created with MathCast Equation Editor version 0.89 --> 8</head> 9<body> 10<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> 11 <mrow> 12 <mtext>acosh</mtext> 13 <mfenced> 14 <mrow> 15 <mi>x</mi> 16 </mrow> 17 </mfenced> 18 <mo>≈</mo> 19 <msqrt> 20 <mrow> 21 <mn>2</mn> 22 <mi>y</mi> 23 </mrow> 24 </msqrt> 25 <mfenced> 26 <mrow> 27 <mn>1</mn> 28 <mo>-</mo> 29 <mfrac> 30 <mi>y</mi> 31 <mn>12</mn> 32 </mfrac> 33 <mo>+</mo> 34 <mfrac> 35 <mrow> 36 <mn>3</mn> 37 <msup> 38 <mi>y</mi> 39 <mn>2</mn> 40 </msup> 41 </mrow> 42 <mn>160</mn> 43 </mfrac> 44 </mrow> 45 </mfenced> 46 <mspace width="1em"/> 47 <mo>;</mo> 48 <mspace width="1em"/> 49 <mi>y</mi> 50 <mo>=</mo> 51 <mn>x</mn> 52 <mo>−</mo> 53 <mi>1</mi> 54 <mspace width="1em"/> 55 <mo>∧</mo> 56 <mspace width="1em"/> 57 <mi>y</mi> 58 <mo><</mo> 59 <msqrt> 60 <mi>ε</mi> 61 </msqrt> 62 </mrow> 63</math> 64</body> 65</html> 66