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AlexFokin [52]
2 years ago
13

Expand (5a/3 -2b/5)^3

Mathematics
2 answers:
Hoochie [10]2 years ago
7 0

Answer:

Hello!

~~~~~~~~~~~~~~~~~~~~

Expanded form of  (5a/3 -2b/5)^3 =

\frac{125a^3}{27} - \frac{10a^2b}{3} + \frac{4ab^2}{5} - \frac{8b^3}{125}

Step-by-step explanation: You have to Simplify the expression.

Hope this helped you. Brainliest would be nice!

zmey [24]2 years ago
5 0
The awnser is 125/34
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Please help: linear algebra problem. (Linear combinations)
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Answer:

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This tells us that:

A=\left[\begin{array}{ccc}5&7\\5&-8\\3&-9\end{array}\right]

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Step-by-step explanation:

So we are saying we have scalars, c and d, such that:

c\left[\begin{array}{ccc}5\\5\\ 3\end{array}\right]+d\left[\begin{array}{ccc}7\\-8\\-9\end{array}\right]=\left[\begin{array}{ccc}-16\\3\\-15\end{array}\right].

So we want to find a way to express this as:

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So we can write this as:

\left[\begin{array}{ccc}5&7\\5&-8\\3&-9\end{array}\right] \left[\begin{array}{ccc}c\\d\end{array}\right] =\left[\begin{array}{ccc}-16\\3\\-15\end{array}\right]

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Answer:

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