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kifflom [539]
3 years ago
13

Which expression is a CUBE ROOT of -2i?

Mathematics
2 answers:
olganol [36]3 years ago
6 0
Remember
∛(ab)=(∛a)(∛b)

also
i¹=i
i²=-1
i³=-i
i⁴=1

so

∛-2i=(∛2)(∛-i)=(∛2)(i)=i∛2
pantera1 [17]3 years ago
3 0

Answer:

i√(2i)

Step-by-step explanation:

Imaginary numbers are complex numbers which can be represented as real numbers by multiplying them with imaginary unit (i = √-1). -2i is an imaginary number. Heron of Alexandria is thought of to be the first person to have used imaginary numbers.

Cube root of -2i

√-2i

= i√2i

= -8×(√-1)³

= i√2i

= i√2i

√-2i

= i√2i  

∴ The expression is a CUBE ROOT of -2i is i√(2i)

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