Hi please I need help to do this problem:

My computations are wrong since I found different result for each computations. I must do something wrong. My method must not be good.Given the electric field vectorE=x(1-sin(Φ))+ycos(Φ)

wherexandyare unit vectors.

Calculate the voltage (potential difference) between the points A(0,1) and B(1,0) along the following path:

a-two lines segments(0,1)-(0,0) and (0,0)-(1,0)

b- Circular arc from (0,1) to (1,0)

c- straight lin connecting A and B

Thank you for your time

B