Contour Integral to Properly Posting Math Problems on Online Forums

[Othman0111]

Homework Statement

Homework Equations

The Attempt at a Solution

 

[Othman0111]

This is my first time here. Please don't delete my thread.

 

[Othman0111]

The code I tried to input:

In[64]:= r = 2;
i = Sqrt[-1];
x[t_] := r*Cos[t] - 1;
y[t_] := r * Sin[t] - i;
K[x_, y_] := {x + i y}

In[70]:= f[K_] := 1/(K - (1 + i))

In[71]:= Integrate[f[K], {t, 0, 2 \[Pi]}]

Out[71]= (2 \[Pi])/((-1 - I) + K)

the output should be 2πi. Right?

 

[anorlunda]

Your handwritten picture is not readable. You are violating our guidelines.

1. Do not simply post images of the problem statement or your work.
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