Show that sin 0 O A O B O C 100 Which of the following four

Last updated: 4/29/2023

Show that sin 0 O A O B O C 100 Which of the following four statements establishes the identity O D 1 82 cos 20 cos 40 sin 40 sin 0 sin 40 sin 0 1 cos 20 2 sin 0 sin 0 1 cos 20 3 2 8 1 cos 20 2 sin 0 sin 0 c 1 cos 20 2 2 11 3 8 1 2 3 8 2 cos 20 cos 40 cos 20 1 2 8 cos 40 1 cos 20 cos 40 8 3 1 1 82 cos 20 cos 40