joeylozier15
26.08.2020 •
Mathematics
Compute $(1 + i)(2 + i)(3 + i).$
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Ответ:
10i
Step-by-step explanation:
Step 1: Expand first 2
(1 + i)(2 + i)
2 + i + 2i + i²
2 + 3i + (-1)
1 + 3i
Step 2: Expand again
(1 + 3i)(3 + i)
3 + i + 9i + 3i²
3 + 10i + 3(-1)
3 + 10i - 3
10i
Ответ:
Sets of 10
Step-by-step explanation: