document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=764289>Question 764289</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sandy stops to check on tom, who is on a ladder recovering a frisbee from the roof. When tom talks to sandy, who is standing 25 feet from the house, the angle of depression is 50 degrees.\r<BR>\n" );
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document.write( "1. From Sandy's perspective, what is the angle of elevation?\r<BR>\n" );
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document.write( "2. How far above the ground is Tom? (round to the nearest hundredth)\r<BR>\n" );
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document.write( "3. How far up the ladder has Tom climbed? (round to the nearest hundredth here, too.)\r<BR>\n" );
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document.write( "4. For safest use of a ladder, the recommended angle is 75 degrees ( as formed by the ladder and the ground.) Is tom using the ladder safely (within 2 degrees of recommendation)? Show your calculations.\r<BR>\n" );
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document.write( "5. Use identities and definitions to show that cos 0=sin 0 cot 0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #465367 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=465367\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \cot\varphi\ =\ \frac{\cos\varphi}{\sin\varphi}\">\r<BR>\n" );
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document.write( "Therefore\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \sin\theta\cot\theta\ =\ \sin\theta\frac{\cos\theta}{\sin\theta}\ =\ \cos\theta\">\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "<font face=\"Math1\" size=\"+2\">Egw to Beta kai to Sigma</font><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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document.write( " </SPAN>\n" );
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