1. -1
2. 1/2
3. -3/2
4. 2
-3/2
1. 4
2. -13
3. 13
4. 6
-13
1. 0.1
2. 0.2
3. 0.3
4. 0.4
0.3
1. 71 / 500
2. 143 / 1000
3. 72 / 500
4. 71 / 1000
71 / 500
1. Both I and II are true
2. Neither I nor II is true
3. I is true, II is false
4. I is false, II is true
Neither I nor II is true
1.
2.
3.
4.
1. e-0.3
2. e-0.5
3. e-1
4. e-2
e<sup>-1</sup>
1. 15x2 - 14xy + 3y2 = 20
2. 15x2 + 14xy- 3y2 =20
3. 15x2 + 14xy + 3y2 =20
4. 15x2 - 14xy - 3y2 = 20
15x<sup>2</sup> + 14xy + 3y<sup>2</sup> =20
1. (1, 2)
2. (2, 2)
3. (3, 1)
4. (1, 1)
(3, 1)