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alexira [117]
3 years ago
9

middle" class="latex-formula">.

Mathematics
1 answer:
Anastasy [175]3 years ago
5 0
First you differentiate it. So:
x^3 + 2x - 1 = 3x^2 + 2
at point (2, 1) the x value is 2 so you substitute that into the differentiated equation.
you get 3(2)^2 + 2 = 14
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Aleksandr-060686 [28]

Answer:

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Step-by-step explanation:

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A = \pm 0.5 \left|\begin{array}{ccc}x_1&y_1&1\\x_2&y_2&1\\1_3&y_3&1\end{array}\right|

In this question:

Vertices (1,0) (5,0) (3,4). So

A = \pm 0.5 \left|\begin{array}{ccc}1&0&1\\5&0&1\\3&4&1\end{array}\right|

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3 years ago
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