if 0 < p < 1, which of the following has the least value?
a) 1/p^2
b) 1/sqrt(p)
c) 1/(p^2 +1)
d) 1/sqrt(p+1)
e) 1/(p+1)^2
a) 1/p^2
b) 1/sqrt(p)
c) 1/(p^2 +1)
d) 1/sqrt(p+1)
e) 1/(p+1)^2
let p=1/4
a) 1/p^2.............................>16
b) 1/sqrt(p).........................>2
c) 1/(p^2 +1)......................>17
d) 1/sqrt(p+1)......................>2/V5 or 10V5/25...V5>2 so 10V5>20
e) 1/(p+1)^2........................>16/25
so least is option E
