4 years ago

(3-4i)(-2-21) multiply

Mathematics

1 answer:

evablogger [386]4 years ago

6 0

Answer:

-69 +92 i (here 'i' is imaginary value)

Step-by-step explanation:

step:-

Given (3-4 i)(-2-21)

on multiplication, we get

(3-4 i)(-2-21) = 3(-2) -3(21) - 4 i (-2) +4 i(21)

= -6 -63 + 8 i +84 i

= -69 +92 i

-69 + 92 i is a complex number.

real part x = -69

imaginary part y = 92

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