3 years ago

I’m really confused please help

Mathematics

1 answer:

Vikentia [17]3 years ago

4 0

Answer:

(2). <em>b - (a + c)i </em>

Step-by-step explanation:

$i^{7}$ = [( i )²]³ × i = ( - 1)³ i = - i

$i^{16}$ = $((i)^2)^{8} = ( - 1)^{8} = 1$

$((i)^2)^{10}$ × i = i

a(- i ) + b( 1 ) - c( i ) = - ai + b - ci = <em>b - (a + c)i</em>

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