11 Calculus Critical Point Confusion - 2nd Derivative Confusion 7 How do I denote only some zeros as significant 4 Find y in table of values $y=-(x+5)(2x+3)(x-2)(x-4)$ 4 Show whether $\lambda$ an eigenvalue of $E$ is an element of ${\pm{1}}$ when $E^{2}$ = $I$ 4 Why isn't $(2x+x^2)^{1/2}$ the same as $(2x)^{1/2}+x$?

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### Questions (17)

 25 How to colour the US map with Yellow, Green, Red and Blue to minimize the number of states with the color of Green 3 Proof that the surface area of a sphere is equal to $2\pi r^2$ and not equal to $4\pi r^2$ and hence $2=1$. 2 Product Map Converse 2 What is the integral of $\frac{2x+1}{x^2+1}$ 2 Does there always exist left inverses for linear transformations for finite dimensional vector spaces?

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 32 calculus × 31 8 polynomials × 4 17 derivatives × 8 7 geometry × 5 16 linear-algebra × 13 7 notation × 2 13 algebra-precalculus × 15 7 significant-figures 8 limits × 4 6 matrices × 5