Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.



Re: [MathTalk] mathcounts notrig question
Posted:
Jan 9, 2012 11:05 PM


Sin[75 Degrees] = Sin[45 Degrees + 30 Degrees].
On Jan 9, 2012, at 6:17 PM, Guy Brandenburg wrote:
> > > Found this question on an old Mathcounts test  a portion where calculators aren't allowed. > > I know the answer (3/4), which I got by using illegal methods (calculators, sines, and cosines), but I can't figure out how one could figure it out just using brain, paper, and pencil. > > The question poses a 751590 triangle whose hypotenuse is given as the square root of three. > > The goal is to compute the area. > > Any hints or suggestions would be welcome. > > Guy Brandenburg, Washington, DC > http://gfbrandenburg.wordpress.com/ > http://home.earthlink.net/~gfbranden/GFB_Home_Page.html > ============================ > > > __._,_.___ > > > Your email settings: Individual EmailTraditional > Change settings via the Web (Yahoo! ID required) > Change settings via email: Switch delivery to Daily Digest  Switch to Fully Featured > Visit Your Group  Yahoo! Groups Terms of Use  Unsubscribe > > __,_._,___
 Lou Talman Department of Mathematical and Computer Sciences Metropolitan State College of Denver
<http://rowdy.mscd.edu/%7Etalmanl> **************************************************************************** * To post to the list: email mathedcc@mathforum.org * * To unsubscribe, email the message "unsubscribe mathedcc" to majordomo@mathforum.org * * Archives at http://mathforum.org/kb/forum.jspa?forumID=184 * ****************************************************************************



