Jawabanmu

2014-02-02T15:06:36+07:00
Sin 105 = sin 15
maka, hasilnya 0 (nol)
2 1 2
Jawaban paling cerdas!
2014-02-02T15:11:54+07:00
 \frac{ \sqrt[]{6}+\sqrt[]{2}  }{4} - \frac{ \sqrt[]{6} -  \sqrt[]{2}   }{4}
= \frac{ \sqrt[]{2} }{2}
Sin 105¤ cos 15¤ = 1/2{ sin (105 + 15)¤ +sin (105 - 15)¤}