Mathematics · Calculus
Let f(x, y) = (x + y) − (x2 + y2). Then:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1f has a minimum at (1/2, 1/2)
- 2f has an extremum at (1, 1)
- 3f has a maximum at (1/2, 1/2)✓
- 4(1/2, 1/2) is a saddle point of f
Correct answer
f has a maximum at (1/2, 1/2)
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