Question 1
If sin x = U, express sin(3x) in terms of U.
◦ 2U + 3U
2◦ 3U + 4U
3◦ -3U + 4U
3◦ 4U - 3U
3◦ 3U - 4U
3Question 2
If
x = tan θ, express sin(2θ) and cos(2θ) as rational functions of
x.
◦ sin(2θ) =

, cos(2θ) =

◦ sin(2θ) =

, cos(2θ) =

◦ sin(2θ) =

, cos(2θ) =

◦ sin(2θ) =

, cos(2θ) =

◦ sin(2θ) =

, cos(2θ) =