5 points
Let f(x, y) = ln(1+x+8y). We can Use Taylor's Theorem to show that for x ≥ 0, y ≥ 0
we have
R1,(0,0) (x, y)| ≤ K(x² + y²)
Find the smallest value of K that would make the statement above true.
K = Number
[5 points]
Fig: 1