Question

If u = 1 + i and v = 1 – i, what is u + v?

Answer 1

u + v = 2

Explanation:

If v = 1 - i

and u = 1 + i

Then we have to calculate and value of u + v

Now u + v = ( 1 - i ) + ( 1 + i )

= (-i + i) + ( 1 + 1 ) [by adding like terms]

= 0 + 2

= 2

= u + v = 2

Answer 2

2

Explanation:

u = 1+i

v = 1-i

u+v = 1+i + 1-i

= 1+1+i-i

= 2