tolong nian yaaaa nomor 26

phi = 180°

sin (3.180)/2 + cos (180/2)
-------------------------------------- =
.................2 tan (180/6)

sin 270° + cos 90°
--------------------------- =
.............2 tan 30°

-1 + 0
--------------------
2 (1/3 akar 3)

= (-1)/((2 akar 3)/3)
= (-1) × (3/(2 akar 3))
= (-3)/(2 akar 3)(...)