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12345 [234]
3 years ago
7

Please hurry simplify the problem a i b 5i c -i

Mathematics
1 answer:
KIM [24]3 years ago
5 0

Answer:

\frac{90}{5} i

Step-by-step explanation:

10 * sqrt(81/25 * -1) = 10 sqrt(81/25) * sqrt(-1) = 10 *9/5 * i

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