2>p=(tan x)^1/x

or, ln p=(1/x)* ln tan x

or,lt(x-->0+) ln p=lt(x-->0+)[ln tan x]/x

or,ln lt(x-->0+)p=lt(x-->0+)sec^2 x/tan x

=lt(x-->0+)[2*sec^2 x* tan x]/sec^2 x

=lt(x-->0+)[2*tan x]=0

lt(x-->0+)p=e^0=1.

1>lt(r--->infinity)cos r/ln r.=lt(r--->infinity)(a term that lies between -1 & 1)/ln r

approx=c/infinity=0