Hitunglah! a. Sin π/3 x cos π/3, b. Sin² π/3 + cos 30° sin 60° c. Cos 30° + sin 60° / tan 60° + cotan 30 °

A). Sin 180/3 + cos 180/3
= sin 60 + cos 60
= 1/2 akar 3 + 1/2

B) sin^2 60 + cos 30 sin 60
= (1/2 akar 3)^2 + (1/2 akar 3)(1/2 akar 3
= 3/4 + 3/4
= 6/4
= 3/2

C) cos 30 + sin 60 / tan 60 + cotan 30
= 1/2 akar 3 + (1/2 akar 3)/(akar 3) + akar 3
= 1/2 akar 3 + 1/2 + akar 3
= 3/2 akar 3 + 1/2