Locate and classify the local extremum of f when f(x, y) 4.x2 – 6x – 6y² – 4y + 10xy. - - 1 1. saddle at 2. ах at 7 (G) 3. min at 4 4. saddle at G 5. min at 6. max at

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A: (1) ddx(105) = 0         ∵ddx(c) = 0  statement is False(2) The equation of the tangent line to the…

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Q: do f() dr where f() = - sin o + sin o cos o = sin ø(y cos o- 1).

A: Given dϕdr=fϕwhere fϕ=-sinϕ+γsinϕcosϕ=sinϕγcosϕ-1

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A: Given,