document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1008289>Question 1008289</A>: <I><SPAN STYLE=\"word-break: break-all;\"> calculate the exact value of the following expressions justifying the steps of calculating :\r<BR>\n" );
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document.write( "Arcsin ( sin (2&#960;/5) ) , Arcsin ( cos ( 3&#960;/7) ) , sin (Arccos (-3/7))\r<BR>\n" );
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document.write( "ad arccos x = 2Arccos (3/4) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #624042 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=624042\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Arcsin ( sin (2&#960;/5) ) = (2pi/5)<BR>\n" );
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document.write( "Arcsin ( cos ( 3&#960;/7) ) = 0.2244<BR>\n" );
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document.write( "sin (Arccos (-3/7)) = 0.9035<BR>\n" );
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document.write( "arccos x = 2Arccos (3/4)<BR>\n" );
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document.write( "Take the cos of both sides to get:<BR>\n" );
document.write( "x = 0.125<BR>\n" );
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