Plz help me k?.

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Joanie watched 1 out of three of a movie in the morning

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements