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charle [14.2K]
3 years ago
9

Help me with dis question and Ill be your best freiwnd.

Mathematics
1 answer:
hichkok12 [17]3 years ago
4 0

Answer: k = -4

Step-by-step explanation: Hope this helps ^^

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Evaluate the limit by first recognizing the sum as the Riemann sum for a function defined on the interval [0,1]: lim as n approa
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\lim_{n \to +\infty} \left ( \dfrac{1}{n} \cdot \left ( \sqrt{ \dfrac{1}{n} } + \sqrt{ \dfrac{2}{n} } + \sqrt{ \dfrac{3}{n} } + \cdots + \sqrt{ \dfrac{n}{n} }} \right ) \right ) =

\dfrac{1}{n} \sum_{i = 1}^n \left (  \sqrt{ \dfrac{i}{n} }   \right ) =  \int\limits^1_0 { \sqrt{x} } \, dx  =  \left [  \frac{2}{3}x^{ \frac{3}{2} }       \right ]^{1}_{0} =   \dfrac{2}{3} \cdot 1^{ \frac{3}{2} }  -  \dfrac{2}{3} \cdot 0^{ \frac{3}{2} }  =  \boxed{ \dfrac{2}{3} }
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2(x^2+3x)-10(x^2+2)

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<em>where</em>

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