Evaluate the function , when d = {9, 15, 30}. r = {5, 7, 12} r = {6, 10, 15} r = {6, 10, 20} r = {5, 12, 20}

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Ответ:

thechameleonnaire

03.06.2021

Mathematics

$\boxed{option \:c . \: is \: correct}$

Step-by-step explanation:

$option \:c . \: is \: correct \\ (x + 2 \sqrt{3} )^{2} = x {}^{2} + 2 {}^{2} (3) {}^{ \frac{1}{2} \times 2 } \\ x {}^{2} + 2 {}^{2} (3) {}^{ \frac{2}{2} } = x {}^{2} + 4 \times 3 \to \\ {x}^{2} + 12 \\ therefore \\ \boxed{option \:c . \: is \: correct}$

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