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January 26, 2015

January 26, 2015

Posted by **z** on Tuesday, May 17, 2011 at 10:10pm.

- math -
**MathMate**, Tuesday, May 17, 2011 at 11:00pmH1=15 tan(27°) [angle of elev.]

H2=15 tan(-18°) [angle of depression, <0]

Height

=H1-H2

=15(tan(27°)-tan(-18°))

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