Simplify. (1 + i)(1 - i) a) -2 b) -1 c) 0 d) 2

Hi there!

D. 2

*The answer must have a positive sign.*

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

a=1, b=1

Then, you add by the numbers from left to right.

1+1=2

Final answer is 2.

Hope this helps!

Have a nice day! :)

:D

-Charlie

Thanks!

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

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