document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=301219>Question 301219</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve :  2sin^2x + sinx -3 = 0  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #216027 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=216027\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> please help me solve : 2sin^2x + sinx -3 = 0 <BR>\n" );
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document.write( "It's a quadratic in sin(x)<BR>\n" );
document.write( "(2sin + 3)*(sin - 1) = 0<BR>\n" );
document.write( "sin = -3/2 (not a real number)<BR>\n" );
document.write( "sin = 1 --> x = 90 + 360n degrees, n = 0,1,2,3...<BR>\n" );
document.write( "or x = pi/2 + 2n*pi, n = 0,1,2,3... in radians<BR>\n" );
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