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imbadatmath56

imbadatmath56

12.08.2020 •

Mathematics

I can’t figure this out

I can’t figure this out

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Ответ:

travyse

31.01.2022

$\dfrac{AB}{BC}=\dfrac{PQ}{QR}\\\\\dfrac{27}{45}=\dfrac{33}{QR}\\\\\dfrac{3}{5}=\dfrac{33}{QR}\\\\3QR=33\cdot5\\QR=11\cdot5\\QR=55$

$\dfrac{AB}{AC}=\dfrac{PQ}{PR}\\\\\dfrac{27}{36}=\dfrac{3}{PR}\\\\\dfrac{3}{4}=\dfrac{3}{PR}\\\\3PR=3\cdot4\\PR=4$

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Ответ:

259772

08.04.2020

(c^2 - c - 1) × 1/c =
(c^2 - c - 1)/c =
c - 1 - 1/c

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