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arsen [322]
3 years ago
10

I need the answer please

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
8 0
You need to provide a picture of the prism...
SpyIntel [72]3 years ago
8 0
I cant really answer without the prism
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PLZ help me fast 2 mins left
jek_recluse [69]

Answer:

\sqrt{-5}=i\sqrt{5}

\sqrt{-25}=5i

Step-by-step explanation:

i is an imaginary unit, this means

i^2=-1

Rewrite -5 as 5\cdot (-1)=5\cdot i^2,

then

\sqrt{-5}=\sqrt{5i^2}=\sqrt{5}\cdot \sqrt{i^2}=\sqrt{5}\cdot i=i\sqrt{5}

Rewrite -25 as -25=25\cdot (-1)=25\cdot i^2,

then

\sqrt{-25}=\sqrt{25\cdot i^2}=\sqrt{25}\cdot \sqrt{i^2}=5\cdot i=5i

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3 years ago
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Answer:

The answer is A

Step-by-step explanation:

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Please help, 50 points.
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What's the direction? Is there an example?

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