Statement : All Clocks are Alarms. No Clocks are Cuckoos. All Cuckoos are Alarms. Some Cuckoos are Birds.
Conclusion :
I : Some Alarms are Birds.
II : No Clock is a Bird
III : All Birds are Alarms
if a not=0 and a-1/a=3 find
(i) a2+1/a2
(ii) a3-1/a3