1. (1, 2), (-1 -2)
2. (2, 3), (-2, -3)
3. (2, -3), (-2, 3)
4. (1, -2), (-1, 2)
(2, 3), (-2, -3)
1. (k, k)
2. (1/k,1/k)
3. (1,1)
4. (k, 1/k)
(1/k,1/k)
1. 2x+3y=10
2. 3x+2y=10
3. 2x-3y=10
4. 3x-2y=10
2x+3y=10
1. -1
2. 0
3. 1
4. 3
0
1. cos 2α
2. tan 2α
3. sin 2α
4. none
sin 2α
1. sin 2β
2. sin 4β
3. sin 3β
4. none of these
sin 4β
1. 3/28
2. √3/28
3.
4. 3/√28
1. 1/4
2. 1/6
3. 2
4. no solution
1/6
1. 1/4
2. 1/6
3. 2
4. No solution
No solution
1. ab
2. 2ab
3. (√ab)
4.
(√ab)