P=f(A,K)=2∗103∗A0,25∗K0,75
NB:
A+K=1000000 → K=1000000−A
f(A)=2∗103∗A0,25∗(1000000−A)0,75
f´(A)=2∗103∗[0,25∗A0,25−1∗(1000000−A)0,75−A0,25∗0,75∗(1000000−A)0,75−1]
2∗103∗[0,25∗A0,25−1∗(1000000−A)0,75−A0,25∗0,75∗(1000000−A)0,75−1]=0
A−0,75∗(1000000−A)0,75=3∗A0,25∗(1000000−A)−0,25
1000000−A=3∗A
A=250000
K=750000