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Precalculus Mathematics Homework Help
Find this unknown angle in the triangle
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[QUOTE="neilparker62, post: 6854512, member: 515522"] I used the tan rule to get to 12 degrees. But yes - it's a numerical answer which does not exactly prove 12 degrees. Have tried all sort of geometric 'tricks' to no avail. However I have been able to determine a surd expression for tan(12) (degrees) as sin(30-18)/cos(30-18) and then show it is equivalent to the expression I got using the tan rule. Well I will get to post that but it's quite a lot of Latex and not really a "simple 2 or 3 step" process! [/QUOTE]
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Precalculus Mathematics Homework Help
Find this unknown angle in the triangle
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