1. 9/8
2. 8/3
3. 1/2
4. 4/3
9/8
1. 1/4[sin θ+ sin 2θ+ sin 3θ]
2. 1/4[sin θ- sin 2θ+ sin 3θ]
3. 1/4[sin θ+ sin 2θ- sin 3θ]
4. 1/4[sin θ- sin 2θ-sin 3θ]
1/4[sin θ+ sin 2θ+ sin 3θ]
1. 9/2
2. 8/3
3. 1/2
4. 1/3
9/2
1. 9/2
2. 8/3
3. 1/2
4. 10/3
10/3
1. sin 7θ+ sin 4θ+ sin 2θ+sin θ
2. sin 7θ+ sin 4θ-sin 2θ+sin θ
3. sin 7θ-sin 4θ -sin 2θ+sin θ
4. sin 7θ+ sin 4θ+ sin 2θ - sin θ
sin 7θ+ sin 4θ-sin 2θ+sin θ
1. 9/2
2. 8/3
3. 1/2
4. 10/3
9/2
1. 4/3 sq.unit
2. 2/3 sq.unit
3. 21/2 sq.unit
4. 27 sq.unit
21/2 sq.unit
1. 0
2. 1
3. -1
4. 2
0
1. 1/3
2. 8/3
3. 1/2
4. 4/3
8/3
1. 1/2[cos 11θ+cos θ]
2. 1/2[sin 11θ+sin θ]
3. 1/2[sin 11 θ+cos θ]
4. 1/2[cos 11θ+sin θ]
1/2[cos 11θ+cos θ]