Question

find the value (-8+i) (-1-i) ​

Answer 1

Step-by-step explanation:

We have,

Let, x=[(1+i)

2

]

(1+i)

4

=[(1+i)

2

]×[(1+i)

2

]

=(1+i)

4

=x

2

Let solve for (x)

x=(1+i)

2

=1+i

2

+2i

=1+(−1)+2i

=2i

So, basically

(1+i)

4

=(2i)×(2i)

=4(i)

2

=−4

Hence, this is answer.