Let z be a complex number and f(z) be any function. If C is a contour and Se f(2)dz = 0 then f is an analytic function throughout C but not necessary on C f is an analytic function throughout and on C and C is closed O None of these

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Q: 7. Which of the following equation describes the triangle inequality for complex numbers? a. b. Z₁ +…

A: (7). For complex number, the triangle inequality is |z1+z2|≤|z1|+|z2| Therefore, the answer is (a).

Q: Let z be a complex number and f(z) be any function. If C is a contour and Sc f(z)dz = 0 then

A: By cauchy theorem in complex integration:-

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Q: 7. Which of the following equation describes the triangle inequality for complex numbers? a. b. c.…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…