1. zero
2. one
3. two
4. three
two
1. stable for all value of K
2. stable for positive value of K
3. stable for ∞>K>7.0
4. unstable for all values of K
unstable for all values of K
1. 4 db
2. 8db
3. 12db
4. 16db
12db
1. 2
2. 2.5
3. 4
4. 5
2.5
1. 1
2. 2
3. 3
4. 4
2
1. 0
2. K>10
3. ∞≤K
4. 0
0<K≤10
1. is stable
2. is marginally stable
3. is unstable
4. stability cannot be assessed from the given information
is stable
1. 00
2. 63.40
3. 900
4. ∞
∞
1. 0
2. 1
3. 2
4. 3
0
1. zero
2. one
3. two
4. three
zero