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<Text-field style="Heading 1" layout="Normal">inversa de secante,</Text-field>
<Text-field style="Text" layout="Normal">(abrev. <Font bold="true">arcsec</Font>, <Font bold="true">sec<Font superscript="true">-1</Font></Font>,<Font bold="true"> </Font>ou <Font bold="true">asec</Font>) <Font italic="true">s.</Font> <Font encoding="UTF-8">a inversa da fun\303\247\303\243o</Font> <Hyperlink linktarget="Dictionary:Definition/secant" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman">secante</Font></Hyperlink>, de modo que, para qualquer argumento, o valor da inversa da secante <Font encoding="UTF-8">\303\251 um \303\242ngulo </Font>cuja secante <Font encoding="UTF-8">\303\251 igual ao dado argumento; i.e</Font>, <Font italic="true">y</Font> = arcsec <Font italic="true">x</Font> se e somente se <Font italic="true">x</Font> = sec <Font italic="true">y</Font>.<Font encoding="UTF-8">\303\211 definida para argumentos entre</Font> <Equation executable="false" style="2D Math" input-equation="" display="LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYkLUkjbW9HRiQ2LVEqJnVtaW51czA7RicvJSxtYXRodmFyaWFudEdRJ25vcm1hbEYnLyUmZmVuY2VHUSZmYWxzZUYnLyUqc2VwYXJhdG9yR0Y0LyUpc3RyZXRjaHlHRjQvJSpzeW1tZXRyaWNHRjQvJShsYXJnZW9wR0Y0LyUubW92YWJsZWxpbWl0c0dGNC8lJ2FjY2VudEdGNC8lJ2xzcGFjZUdRLDAuMjIyMjIyMmVtRicvJSdyc3BhY2VHRkNGLw==">LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYkLUkjbW9HRiQ2LVEqJnVtaW51czA7RicvJSxtYXRodmFyaWFudEdRJ25vcm1hbEYnLyUmZmVuY2VHUSZmYWxzZUYnLyUqc2VwYXJhdG9yR0Y0LyUpc3RyZXRjaHlHRjQvJSpzeW1tZXRyaWNHRjQvJShsYXJnZW9wR0Y0LyUubW92YWJsZWxpbWl0c0dGNC8lJ2FjY2VudEdGNC8lJ2xzcGFjZUdRLDAuMjIyMjIyMmVtRicvJSdyc3BhY2VHRkNGLw==</Equation>1 e 1 e seus <Hyperlink linktarget="Dictionary:Definition/principalvalue" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman">valores principais</Font></Hyperlink> (frequentemente escritos <Font encoding="UTF-8" italic="true">Arcsec \316\270 </Font>ou <Font italic="true">Sec</Font><Font superscript="true">-1</Font> <Font family="MaplePi">q</Font>) <Font encoding="UTF-8">s\303\243o tomados, por conven\303\247\303\243o, entre</Font> 0 e  <Font family="MaplePi">p</Font><Font encoding="UTF-8">.  Do gr\303\241fico destes valores principais pode-se ver que a fun\303\247\303\243o nunca toma o valor </Font><Font family="MaplePi">p</Font>/2.  (Alguns autores fornecem o intervalo de seus principais valores como dois intervalos -<Font family="MaplePi">p</Font> <Font family="MaplePi" encoding="UTF-8">\302\243</Font> <Font family="MaplePi">q</Font> <Font family="MaplePi">&lt;</Font> - <Font family="MaplePi">p</Font>/2 e 0 <Font family="MaplePi" encoding="UTF-8">\302\243</Font> <Font family="MaplePi">q</Font> <Font family="MaplePi">&lt;</Font> <Font family="MaplePi">p</Font>/2). A derivada do arcsec <Font italic="true">x</Font><Font encoding="UTF-8"> \303\251 </Font></Text-field>
<Text-field style="Text" layout="Normal"><Equation executable="false" style="2D Math" input-equation="" display="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">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</Equation>, 
 e sua <Font encoding="UTF-8">antiderivada ou integral indefinida \303\251 </Font>
<Font italic="true">x</Font> arcsec <Font italic="true">x</Font> - ln(<Font italic="true">x</Font> + <Equation executable="false" style="2D Math" input-equation="" display="LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYmLUkjbWlHRiQ2I1EhRictSSZtc3FydEdGJDYjLUYjNilGK0YrLUklbXN1cEdGJDYlLUYsNiVRInhGJy8lJ2l0YWxpY0dRJXRydWVGJy8lLG1hdGh2YXJpYW50R1EnaXRhbGljRictSSNtbkdGJDYkUSIyRicvRj5RJ25vcm1hbEYnLyUxc3VwZXJzY3JpcHRzaGlmdEdRIjBGJy1JI21vR0YkNi1RKCZtaW51cztGJ0ZELyUmZmVuY2VHUSZmYWxzZUYnLyUqc2VwYXJhdG9yR0ZPLyUpc3RyZXRjaHlHRk8vJSpzeW1tZXRyaWNHRk8vJShsYXJnZW9wR0ZPLyUubW92YWJsZWxpbWl0c0dGTy8lJ2FjY2VudEdGTy8lJ2xzcGFjZUdRJjAuMGVtRicvJSdyc3BhY2VHRmhuLUZBNiRRIjFGJ0ZERitGREYrRkQ=">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</Equation>).
<Font encoding="UTF-8">Veja tamb\303\251m</Font> <Hyperlink linktarget="Help:invtrig" hyperlink="true"><Font style="Hyperlink" family="Times New Roman">invtrig</Font></Hyperlink>.</Text-field>
</Worksheet>