1. tan3 θ
2. cot3 θ
3. -tan3 θ
4. -cot3 θ
-cot3 θ
1. tan t
2. –tan t
3. tan (3t/2)
4. –cot (3θ/2)
–tan t
1. tan t
2. –tan t
3. tan (3t/2)
4. –cot (3θ/2)
tan (3t/2)
1. tan t
2. –tan t
3. tan (3t/2)
4. –cot (3θ/2)
–cot (3θ/2)
1. t(2+t3)/1-2t3
2. t(2-t3)/1-2t3
3. 2bt/a(t2+1)
4. 2bt/a(t2-1)
t(2-t3)/1-2t3
1. t(2+t3)/1-2t3
2. t(2-t3)/1-2t3
3. 2bt/a(t2+1)
4. 2bt/a(t2-1)
2bt/a(t2-1)
1. a
2. at
3. a2t2
4. none
at
1. -2
2. 2
3. -1/2
4. 1/2
1/2
1. 0
2. 1
3. -1
4. 2
0
1. –π/2
2. 2/π
3. π/4
4. 4/π
4/π