3 years ago

I can't figure out how to do this question. simplify the imaginary number in the picture above please

Mathematics

1 answer:

Alona [7]3 years ago

3 0

Answer:

-i(6/7)√2

Step-by-step explanation:

$\displaystyle -\sqrt{-\frac{72}{49}}=-\sqrt{-1}\sqrt{\frac{36}{49}}\sqrt{2}\\\\=-i\frac{6}{7}\sqrt{2}$

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