1. 1/1+25x2
2. 5/1+25x2
3. 1/1+5x2
4. 5/1+5x2
5/1+25x2
1. -1
2. 0
3. 1
4. 2
0
1. 1/1+x2
2. 2/1+x2
3. 4/1+x2
4. -1/1+x2
4/1+x2
1. 1/1+x2
2. 2/1+x2
3. 4/1+x2
4. -1/1+x2
4/1+x2
1. n{xn-1sec2xn+tann-1xsec2x+xn-1/1+x2n}
2. -1
3. 1
4. none
n{xn-1sec2xn+tann-1xsec2x+xn-1/1+x2n}
1. 1/2(1+x2)
2. 2/√1-x2
3. 3/1+x2
4. 1/2√1-x2
2/√1-x2
1. -1/1+x2
2. 3/√1-x2
3. 3/1+x2
4. 1/2√1-x2
3/√1-x2
1. 1
2. -1
3. 1/2
4. -1/2
1/2
1. 1
2. -1
3. 1/2
4. -1/2
-1/2
1. 1
2. -1
3. 1/2
4. -1/2
1/2