Mathematics: Which of the following is the correct notation for √-98+71 a. 7i √2+71 b. 71+7i √2 c.-7i √2++71 d.7 √2+71i

Which of the following is the correct notation

Ответ:

nina288

18.01.2022

$\large\boxed{A.\ 7i\sqrt2+71}$

Step-by-step explanation:

$\text{Use}\\\\i=\sqrt{-1}\\\\\sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\----------------------\\\\\sqrt{-98}+71=\sqrt{(-1)(49)(2)}+71=\sqrt{-1}\cdot\sqrt{49}\cdot\sqrt2+71\\\\=i\cdoy7\cdot\sqrt2+71=7i\sqrt2+71$

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Ответ:

uc22912

08.11.2021

Mathematics

It’s 6 and idk what a tape diagram is so just do that

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Which of the following is the correct notation for √-98+71
a. 7i √2+71
b. 71+7i √2
c.-7i √2++71
d.7 √2+71i

Ответ:

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