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Naddika [18.5K]
3 years ago
14

(-2i)(5i)(-1) how do you solve by simplifying showing the steps

Mathematics
1 answer:
Nuetrik [128]3 years ago
3 0
i = \sqrt{-1}

This is the fundamental property of i that you'll need to keep in mind when solving any problem with imaginary numbers (5i, 2i, 18i, etc.) or complex numbers (3+2i, 8-5i, etc). Squaring both sides of this definition, we also get that

i^2=-1

Which we can use to solve this problem. We have:

(-2i)(5i)(-1)\\
=(-10i^2)(-1)\\
=(-10)(-1)(-1)\\
=-10
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