Question

express in a+ ib form and find a,b values (1+I)(1-i)-1​

Answer 1

Step-by-step explanation:

(1+i)(1-i)-1

= ( 1² - i² ) - 1

= 1 - ( -1 ) - 1

= 1

Answer 2

Answer:

(1+I)(1-i)-1

1+i-i-i^2-1

i^2

-1