f(L,K) = ln(L+1) + ln(K+1)
(1) Does this function has any corner solutions? If so, what are the values?
(2) For what values of (w,r,y), is there an interior solution for cost minimization>
(3) Find all possible interior solution for (L*,K*)
(4) what are the conditional input demand functions for L, K?
(5) what is the cost function?