SOLUTION: write the expression as a complex number in standard form (5-7i)(-4-3i)
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Question 692307
:
write the expression as a complex number in standard form
(5-7i)(-4-3i)
Answer by
mouk(232)
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ARITHMETIC on Complex Numbers
Solution:
Multiplication of two complex numbers
a + bi
and
c+di
is done according to formula:
(a + bi) * (c+di) = (ac-bd) + (ad+bc)i.
In our case,
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