latinotimo7643
12.12.2019 •
Mathematics
Multiply and simplify.
(3 + i)(4 + 2i)
use the imaginary number i to rewrite the expression:
(minus b)
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Ответ:
Multiply and simplify (3 + i)(4 + 2i)
(3 + i)(4 + 2i) = (3*4) + (3*2i) + (4*i) + (2i*i) = 12 + 6i + 4i + 2i^2
i^2 = -1
12 + 6i + 4i + 2i^2 = 12 + 6i + 4i -2 = 10 + 10i
Use the imaginary number i to rewrite the expression:
-
Ответ:
(8314.5 g) / (230 L) = 36.15 g/L . Hope this helps!