Mathematics: It s in the attachment URGENT

It s in the attachment URGENT - id5672954, ladybuggirl400

Ответ:

toya96

22.01.2022

Step-by-step explanation:

$\frac{2a}{a + b - c} = \frac{2b}{b + c - a} = \frac{2c}{a + c - b} = k \\ \\ by \: theorem \: on \: equal \: ratios \\ \\ \frac{2a + 2b + 2c}{a + b - c + b + c - a + a + c - b} = k \\ \\ \frac{2(a + b + c)}{a + b + c} = k \\ \\ \therefore \: k = 2$

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Ответ:

aletadaboss

06.04.2022

Mathematics

Solve

$31-8-2+(4)(5)\\23-2+(4)(5)\\21+(4)(5)\\21+20\\=41$

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It's in the attachment
URGENT

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It's in the attachment URGENT

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It's in the attachment
URGENT