Question

PLease help look at picture

Answer 1

you gots a conjugate times 1/4

Answer 2

a

Answer 3

1^2 - (i sqrt(3))^2

1 - i^2(3)

1 -(-1)(3) = 1+3 = 4

4/4 = 1

Answer 4

i looked

Answer 5

thank you did it look ok? *sarcasm!*