document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=888539>Question 888539</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student is overheard saying :'i dont need to learn trig ratios . I am just going to use Sine and Cosine Laws to Solve problems. Show by example that the student is right. explain advantages and disadvantages to this approach.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #537464 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=537464\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A student is overheard saying :'i dont need to learn trig ratios . I am just going to use Sine and Cosine Laws to Solve problems. Show by example that the student is right. explain advantages and disadvantages to this approach.<BR>\n" );
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document.write( "Bad idea!<BR>\n" );
document.write( "While it is true you can derive all the remaining ratios from the sin and cos functions, you will be presented with problems that require a working knowledge of relationships between trig functions other than sin or cos. Take for example, the pythagorean identities: tan^2+1=sec^2 and cot^2+1=csc^2.<BR>\n" );
document.write( "Some problems are difficult to solve without this knowledge. Also, the graphs of all trig ratios and their reciprocals look quite different from from each other. <BR>\n" );
document.write( "As I said, as student learning trig, its a bad idea to to think you only need to learn the sine and cosine laws to solve problems. </SPAN>\n" );
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