If u = 1 + i and v = 1 – i, what is u + v? a.2 b.0 c.-2i d.-2 e.2i

2

Step-by-step explanation:

u = 1+i

v = 1-i

add them together

1+i

1-i

2 +0

2

Step-by-step explanation:

Remark

Treat that i as though it were any letter used as variable. The fact that it represents the square root of minus 1 is not an issue here. If you have 5x -5x the result is 0.

Same thing with this question

u + v = 1 + i + 1 - i = 2 The two "i"s cancel and the two "1"s add. The answer is 2  

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2