1. 3/108
2. 5/108
3. 5/54
4. 5/27
5/108
1. 1/a
2. a2
3. a
4. 1/a2
1/a2
1. x2+y2-2x+2y-1=0
2. x2+y2-2x+2y+1=0
3. x2+y2-2x-2y+1=
4. x2+y2-2x-2y-1=0
x2+y2-2x-2y+1=
1. 2/3
2. 1/4
3. 3/4
4. 1/2
1/4
1. 900
2. 1
3. 0
4. 1/√2
0
1. 230
2. 225
3. 220
4. 205
205
1. 12/5
2. 5/12
3. 0
4. -1
12/5
1. 5
2. √7
3. 2√7
4. 10
10
1. 5x5x20C5
2. 5x20C5
3. 5x20C3
4. 20C5
5x20C5
1. Tan-1(2)
2. Tan-1(1/3)
3. Tan-1(1/√2)
4. Tan-1(1/2)
Tan-1(1/2)