3. If is subject to f(x, y) = 7xy x² + y² - 14(x + y) = 49 find a global maximum stationary point and its value, a global minimum stationary point and its value as well as another stationary point that is neither a global maximum nor a global minimum.

Q: i) f(x) = 2 In(-x) j) 2(x2 – 4) f(x) = %3D x2 -x-6

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Q: which

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A: f(x)=xln(x)f'(x)=ln(x)+x.1xf'(x)=1+ln(x)now f'(x)=01+ln(x)=0ln(x)=-1x=e-1x=0.3678

Q: f(x) = x2 -x-7 is The relative maximum value of and its relative minimum value is

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Q: Show that this stationary path yields a global minimum.

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