Answered

Simplify (10 + 3i)(4 - i). Show your solution.
and
Write 4i/(5+4i) in a + bi form. Show your solution.

Sagot :

DEGUZMANELYNET1224GO

(10+3i)(4-i)

10×4-10i + 3i × 4-3i × i

40-10i+12i-3i²

40-10i+12i-3×(-1)

40-10i+12i+3

43+2i

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