document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=731623>Question 731623</A>: <I><SPAN STYLE=\"word-break: break-all;\"> COMPLETELY LOST HELP NEEDED ON HOMEWORK QUESTION IT would be much appreciated<BR>\n" );
document.write( "Given the function f(x)=20sin(30*x)-10 determine when f(x)=-20 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #447324 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=447324\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x)=20sin(30*x)-10 determine when f(x)=-20<BR>\n" );
document.write( "----<BR>\n" );
document.write( "20sin(30x) - 10 = -20<BR>\n" );
document.write( "---<BR>\n" );
document.write( "20sin(30x) = -10<BR>\n" );
document.write( "---<BR>\n" );
document.write( "sin(30x) = -1/2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "30x = -pi/6 or 30x = 7pi/6)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "In radians:<BR>\n" );
document.write( "x = -pi/180 or x = (7pi)/180<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "In degrees:<BR>\n" );
document.write( "x = -1 degree or x = 7 degrees\r<BR>\n" );
document.write( "\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );