im nt solving it fullt but this may help u..

i've got the ans like this..

 

 

its inf-inf form...

 

combine it to form one expression of the form 0/0 .(by taking lcm)

 

now aplly l'hospital's rule once..

and then devide both num and denominator by x^q.

 

and than aplly l'hospitals rule again..

u'll get the ans...