Cos2 phi/6 - sin2 3phi/4 + 8 sin phi/4 cos 3phi/4 =
mohon bantuannya :)
mohon bantuannya :)
trifenaLiaw
Sin 60 - sin 45 +sin 0 . cos 45 = 1/2 akar 3 - 1/2 akar 2 = akar 6 + 0 = akar 6 . 1/2 akar 2 = 1/2 akar 12
2 votes
Thanks 5