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user59917

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43 reputation
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5 Questions

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3
 Show that every open $n$-ball contains $n$ vectors that form a basis for $\mathbb{R}^n$
2
 Find $\lim_{(x,y) \to (0,0)}\frac{x^3\sin(x+y)}{x^2+y^2}$
1
 Which $n$-gons, inscribed in a circle, have the largest area?
1
 Is this function differentiable at $(0,0)$?
0
 Showing $f$ is continuous given $||f(x)-f(y)|| ≤ u(||x-y||)$ where $\lim_{t \to 0+} u(t)=0$

43 Reputation

+5 Which $n$-gons, inscribed in a circle, have the largest area?
+5 Show that every open $n$-ball contains $n$ vectors that form a basis for $\mathbb{R}^n$
+5 Is this function differentiable at $(0,0)$?
+5 Find $\lim_{(x,y) \to (0,0)}\frac{x^3\sin(x+y)}{x^2+y^2}$
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vector-spaces
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derivatives
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calculus

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