MathProblemsBank

10.1.48 Integral of a Complex Variable

Condition: Calculate the integral with a complex variable: \ [\ int_ {| z | = 3} \ frac {\ cos z d z} {(z+1) (Z-4) (Z-2)}. \]

Calculation of Integrals from Functions of a Complex Variable. Sub-Integral Functions Can beer Analytic or Singular Points. Application of the Main Residue Theorem, As Well as the Cauchy Formulas for Calculanting Integrals of Function with Poles in a Simply Connected Domain.