document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1064670>Question 1064670</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given Sin(A) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3%2F5+ ALIGN=MIDDLE  ALT=\"+3%2F5+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  and  Cos(B) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+8%2F17+ ALIGN=MIDDLE  ALT=\"+8%2F17+\"   DISABLED_style= \"max-width:90%; height:auto;\" > in Quadrant I, find Tan(A+B).\r<BR>\n" );
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document.write( "A.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+0.8+ ALIGN=MIDDLE  ALT=\"+0.8+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "B.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-1.72+ ALIGN=MIDDLE  ALT=\"+-1.72+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "C.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-4.21+ ALIGN=MIDDLE  ALT=\"+-4.21+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "D.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-6.46+ ALIGN=MIDDLE  ALT=\"+-6.46+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #679763 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=679763\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> tan(A+B) = (tan(A) + tan(B)) / (1 - tan(A)tan(B))<BR>\n" );
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document.write( "sin^-1 (3/5) = 36.8699<BR>\n" );
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document.write( "cos^-1 (8/17) = 61.9275<BR>\n" );
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document.write( "tan(A) = tan(36.8699) = 0.75<BR>\n" );
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document.write( "tan(B) = tan(61.9275) = 1.875<BR>\n" );
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document.write( "tan(A+B) = (0.75 + 1.875) / (1-(0.75 * 1.875)) = -6.4615<BR>\n" );
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document.write( "Answer is D.)<BR>\n" );
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document.write( "Note we could have calculated tan(36.8699 + 61.9275) which is<BR>\n" );
document.write( "equal to our calculation above<BR>\n" );
document.write( ":\r<BR>\n" );
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