Integer triangle harmonic progression. This is because such angles have to be rational angles of the form with rational 0 < < 1. But all the angles of integer triangles must have rational cosines and this will occur only when = i.e. the integer triangle is equilateral. The square of each internal angle bisector of an integer triangle is rational, because the general triangle formula for the internal angle bisector of angle "A" is formula_2 where "s" is the semiperimeter (and likewise for the other angles' bisectors). Any altitude dropped from a vertex onto an opposite side or its extension will split
International (The Three Degrees album) International (The Three Degrees album) International is a 1975 studio album released by the female girl group The Three Degrees. The album includes the 1974 hit single, "TSOP (The Sound of Philadelphia)". In the United Kingdom, the album was released under the title "Take Good Care of Yourself", where it charted at #6, in Europe the album was issued with the alternative title of "With Love". The album was also issued in Japan with an alternative running order and several different tracks. The album was re-issued in October 2010, for the first time in its entirety on CD by Big