find and sketch the domain of f(x,y) = sqrt(1+ln(xy))
it will be:
graph of y=1/ex is approximately the same as y=1/x
where should i shade it ??
it have curve in quadratic 1 and curve in quadratic 3
i will shade it inside both curves or just the curve in the quadratic 1??
since y > 1/ex
---> xy > 1/e
product is positive
so I will shade the curve in quadratic 3