Jawabanmu

2014-06-03T21:06:36+07:00
(½)² + 1 + (½)² * 1/(½√3) * 1/(½√3)
= ¼ + 1 + ¼ * 2/√3 * 2/√3
= 3/2 + 1/3
= 9/6 + 2/6
= 11/6