Answer please

4. Define a production function F : R? - R+ by if (x1 + 12) >0 F (x1, 12) = 0 if (x1 + 12) =0 where r, and r, are the amounts of two inputs used to produce a single output. Given input prices wi > 0 and w2 > 0, consider the problem of finding the cost minimizing input combination of producing at least an output level of one unit: min WE1+ WI2 subject to F($1, 12) 2 1 and (11, 12) 20 Find the cost-minimizing input demand