Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §13.6 Maxima, Minima, and Saddle Points, #21 · Multivariable Calculus · Gradient & optimization

Minimize … restricted by (a) … (b) … (c) … and

Minimize $f = x^{2} + x y + y^{2} - x - y$ restricted by
(a) $x \leq 0$ (b) $y \geq 1$ (c) $x \leq 0$ and $y \geq 1$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §13.6 Maxima, Minima, and Saddle Points, #21

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