document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=827254>Question 827254</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, I am trying to complete an exam question on Further Maths Trigonometry. I have found a cosine solution of x= (2pi/3)n and the next part of the question says Use your general solution to find the smallest solution of this equation which is greater than 5pi. I don't remember covering this in class. Please would you be able to explain how to do this please </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #498564 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=498564\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have found a cosine solution of x= (2pi/3)n<BR>\n" );
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document.write( "and the next part of the question says \r<BR>\n" );
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document.write( "Use your general solution to find the smallest solution of this equation which is greater than 5pi.<BR>\n" );
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document.write( "PLEASE READ THIS CORRECTION TO THE ANSWER I FIRST POSTED.<BR>\n" );
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document.write( "If (2/3)pi is a solution so is (4/3)pi since they have the same<BR>\n" );
document.write( "cosine value of -1/2<BR>\n" );
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document.write( "5pi takes you to the start of the 3rd Quadrant.<BR>\n" );
document.write( "Adding 5pi you would get (5+(2/3))pi which is in the 3rd Quadrant<BR>\n" );
document.write( "and has the same cosine value<BR>\n" );
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document.write( "But (5-(4/3))pi would be in the 1st quadrant where the cosine is +1/2<BR>\n" );
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document.write( "Ans: (5+(2/3))pi<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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