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iragen [17]
3 years ago
15

Simplify the expression (4i)(2i)(-9i)

Mathematics
1 answer:
lakkis [162]3 years ago
7 0

Answer:

Step-by-step explanation:

(4i)*(2i)*(-9i) = 4*2*(-9) * i³           { i³ = -i}

                    = -72 *(-i)          

                   = 72i

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