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Minchanka [31]
3 years ago
11

What is the value of x and the length of segment DE?

Mathematics
2 answers:
Oduvanchick [21]3 years ago
6 0

Answer:

X= 6.6

Length of de = 16.2

Step-by-step explanation:

kaheart [24]3 years ago
3 0

My reactions to this:

???

My notes to you:

This is confusing... (At least for me it is...)

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\bf \displaystyle\int~\cfrac{~~\begin{matrix} sin(4x-1) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ }{u^2}\cdot \cfrac{du}{-4~~\begin{matrix} sin(4x-1) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies -\cfrac{1}{4}\int\cfrac{1}{u^2}du\implies -\cfrac{1}{4}\int u^{-2}du \\\\\\ -\cfrac{1}{4}\cdot \cfrac{u^{-2+1}}{-1}\implies \cfrac{1}{4}\cdot u^{-1}\implies \cfrac{1}{4u}\implies \cfrac{1}{4cos(4x+1)}+C

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do you need an explanation as well?
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2 years ago
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