We know that Master's theorem is applicable if for the reccurence relation T(n)=aT(n/b) +Θ(n^k log^p n) ,the conditions: a>=1, b>1, k>=0 and p= any real number are satisfied.
My doubt is that if k= not a constant( eg: n^n), then can we apply the theorem since we know n will always be positive so k will be positive only?