y=xx
y ' = (ln x + 1)x x
y’=0èx=1/e. y=xx reaches the minmum at x=1/e. y’ can take any positive number x and the first derivative is negative before reches the minmum at x=1/e and positive after reaches the minmum.
y=xx
y ' = (ln x + 1)x x
y’=0èx=1/e. y=xx reaches the minmum at x=1/e. y’ can take any positive number x and the first derivative is negative before reches the minmum at x=1/e and positive after reaches the minmum.