document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=731700>Question 731700</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi,<BR>\n" );
document.write( "Can someone tell me the steps how to solve this\r<BR>\n" );
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document.write( "cox x + 1 = &#8730;3 sin x where 0 &#8804; x < 2&#8719;\r<BR>\n" );
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document.write( "the answer is cos x = 1/2 or cos x =-1\r<BR>\n" );
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document.write( "I just want to know how did they get it.\r<BR>\n" );
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document.write( "Thank you so much in advance. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #447245 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=447245\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos x + 1 = &#8730;3 sin x where 0 &#8804; x < 2&#960;<BR>\n" );
document.write( "cos x + 1 = &#8730;3 sin x<BR>\n" );
document.write( "square both sides<BR>\n" );
document.write( "cos^2x+2cosx+1=3sin^2x<BR>\n" );
document.write( "cos^2x+2cosx+1=3(1-cos^2x)<BR>\n" );
document.write( "cos^2x+2cosx+1=3-3cos^2x)<BR>\n" );
document.write( "4cos^2x+2cosx-2=0<BR>\n" );
document.write( "(4cosx-2)(cosx+1)=0<BR>\n" );
document.write( "..<BR>\n" );
document.write( "4cosx-2=0<BR>\n" );
document.write( "cosx=1/2<BR>\n" );
document.write( "x=&#960;/3, 5&#960;/3 (In quadrants I and IV where cos>0)<BR>\n" );
document.write( "or <BR>\n" );
document.write( "cosx+1=0<BR>\n" );
document.write( "cosx=-1<BR>\n" );
document.write( "x=&#960; </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );