1. itan nθ
2. icot nθ
3. -itan nθ
4. -icot nθ
itan nθ
1. 2
2. 0
3. 1
4. -1
-1
1. α+β+γ=0
2. α+β+γ=1
3. α+β=γ
4. α2+ β2+ γ2 =1
α+β+γ=1
1.
2.
3.
4.
1. (4,-2,2).2√6
2. (-4,2,-2)√6
3. (4,2,2),3√6
4. (4,2,-2),(1/2)√6
(4,-2,2).2√6
1. √23 sq units
2. √21 sq units
3. √29 sq units
4. √33 sq units
√29 sq units
1.
2.
3.
4. (
1. π/6
2. π/4
3. π/3
4. π/2
π/6
1. √6
2. √3
3. √5
4. √7
√3
1. 1
2. 6
3. 0
4. -1
0