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  • Q1:Question 4. Let R > 0 be a real number and let CR denote the semicircular arc of radius R in the upper half of the compl...See Answer
  • Q2:6. (9 points) Find the Laurent series of f(z) 2-7 z²+z-6 for 1 <|z-1|<4.See Answer
  • Q3:z²-2 5. (8 points) Evaluate the contour integral Sc (z+4i)² dz where C is the curve defined by | z | = 5.See Answer
  • Q4:2. (8 points) Evaluate the contour integral 24 dz +4 where C is the counterclockwise oriented curve | z |= 1.See Answer
  • Q5:4. (9 points) Let f be a complex valued function. Prove that if f is analytic in a domain D, then its derivatives f',f",...See Answer
  • Q6:4. (15 points) Evaluate the contour integral (a) fez • f₁z+71/2² (b) f COS Z (z²-4)² dz where C : |z+1|= 5 dz where Cz-2...See Answer
  • Q7:*$cz² = 1² 3. (10 points) Evaluate dz where C is the counterclockwise oriented curve |z| = 4.See Answer
  • Q8:1. (10 points) Prove that the contour integral of a continuous function f is independent of path in a domain D if and on...See Answer
  • Q9:4. (15 points) Evaluate the contour integral.edz v z = 0 to z = 2. dz where C is the broken line from z = - -3i to z = 0...See Answer
  • Q10:1. (15 points) Let z1 = rei and z2 = Reio be two complex numbers, the prove that (a) log (z121) = logz₁ +log z₂+2kлi (b)...See Answer
  • Q11:3. (20 points) Find the Laurent series for the function in the given domain. 1 z² + 2z Z z²-3z+2 (a) (b) for 0 <|z|< 2 f...See Answer
  • Q12:5. (9 points) Show that the function u(x, y) = x³ − 3xy² + y is harmonic and determine it's harmonic conjugate.See Answer
  • Q13:2. (8 points) Show that the bilinear map w = maps points on the circle | z — 1 |= 1 to points on the line Re(w) = 12.See Answer
  • Q14:3. (8 points) Find the limit: lim- 2-1 z-i z+i x y 4. (9 points) Show that the function f(z) = (x + x2 + 12) + (1 - x² +...See Answer
  • Q15:4. (10 points) Find all analytic functions with real part u(x, y)=x²-3xy²+y.See Answer
  • Q16:3. (10 points) Find domains in which u(x,y) is harmonic. Find all harmonic conjugates. x²+x+y² x² + y² u(x, y) =See Answer
  • Q17:2. (10 points) If f(z) = u+iv is analytic in a domain D, and if either u(x, y) or v(x,y) is constant in D, prove that f(...See Answer
  • Q18:Let A = {z = C|0 ≤|z-2i| < 1} U {z E C0 <z + 2i| < 1} U {z € C|Re(z) = 0,-1 ≤ Im(z) ≤ 1}. (4a) Determine whether A is a ...See Answer
  • Q19:Complex numbers Multiple choice questions Q1 Given z² = 4(cos 3π/2 + i sin3π/2). which of the following is equal to z? ...See Answer
  • Q20:(3) Suppose w(t) = u(t) +iv(t) is complex-valued function of a real variable t and that w'(t) exists. Prove that d/dt z...See Answer

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