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3 years ago

Help pls √-4 - √-25 Express complex numbers in terms of i

Mathematics

2 answers:

Bess [88]3 years ago

6 0

That would become 2i minus 5i which gives you negative 3i

kow [346]3 years ago

5 0

$i=\sqrt{-1}\\\\\sqrt{-4}=\sqrt{(4)(-1)}=\sqrt4\cdot\sqrt{-1}=2i\\\\\sqrt{-25}=\sqrt{(25)(-1)}=\sqrt{25}\cdot\sqrt{-1}=5i\\\\\sqrt{-4}-\sqrt{-25}=2i-5i=-3i$

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