Which of the following statements is TRUE? (Circle ALL that apply) a. A constant function has no derivative. b. A continuous function is always differentiable. A differentiable function can have horizontal asymptotes. d. A polynomial function is always differentiable. c.

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A: Given a function f(x,y)= x3+x2y3-2y2 Now, fxx= ∂2f∂x2=∂∂x∂f∂x fyy= ∂2f∂y2=∂∂y∂f∂y fxy=fyx=∂2f∂x∂y=∂∂...

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