Question: i) (5 points) Let E C R' be a compact set. Define f : E - R by f (x, y) = x2 + cos?(ey).

i) (5 points) Let E C R' be a compact set.

i) (5 points) Let E C R' be a compact set. Define f : E - R by f (x, y) = x2 + cos?(e"y). Prove that there exists ME (0, co) such that for every (x, y) E E we have M

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