1. Find the absolute extrema of the functionf(x)=(x2+16)(2/3)on the interval[_1,2]. Also, find the second derivative of the function.2. If possible, find the location of an absolute extremum of the function on the given interval.g(x)=2x3_3x2_180x+12;(0,7)Select the correct choice below and if necessary fill in the answer box(es) to complete your choice.A. The function g(x) has an absolute maximum at x= and no absolute minimum.B.The function g(x) has an absolute maximum at x= and an absolute minimum at x=