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Andreyy89
4 years ago
11

Simplify 5i × i × -2i = ??

Mathematics
2 answers:
7nadin3 [17]4 years ago
7 0
5 i x i x - 2 i = 10 i

Gwar [14]4 years ago
4 0
I = √-1
i² = -1
i³ = -√-1  =  -i
  
                 (5i) · (i) · (-2i)

             =  (5 · 1 · -2) i³

             =    -10 i³  =  10 i
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