Tolong yaa 5 sin 70° sin 10°

5 sin 70° sin 10°
= 5 [1/2[cos ( 70°-10°) - cos ( 70°+10°)]]
= 5 [ 1/2 [cos 60° - cos 80°]]
= 5 [ 1/2 [ 0,5 - 0,174]]
= 5 [ 1/2 [0,326]]
= 5 [ 0,163]
= 0,185

semoga membantu, maaf kalo ada yang salah