document.write( "Question 918565: integration of x*sec(x)dx \n" ); document.write( "

Algebra.Com's Answer #557130 by Edwin McCravy(20059) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "By parts:\r\n" );
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document.write( ",  \r\n" );
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document.write( ",  \r\n" );
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document.write( ",  \r\n" );
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document.write( "But there is no ordinary formula for that.  So this problem cannot be \r\n" );
document.write( "done by the methods of an ordinary calculus course.  There are advanced \r\n" );
document.write( "methods that deal with polylogarithm functions that allow this to be\r\n" );
document.write( "integrated.  But an ordinary calculus course should not give a problem\r\n" );
document.write( "such as this.  Maybe a definite integral of this same expression that \r\n" );
document.write( "could approximated by the trapezoid method or Simpson's rule would be\r\n" );
document.write( "OK.  Talk with your instructor about this.\r\n" );
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document.write( "Edwin

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