The value of $$\oint {\frac{{\sin {\text{z}}}}{{\text{z}}}{\text{dz,}}} $$ where the counter of integration is a simple closed curve around the origin, is
A. 0
B. 2πj
C. $$\infty $$
D. $$\frac{1}{{2\pi {\text{j}}}}$$
Answer: Option A
This Question Belongs to Engineering Maths >> Complex Variable
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The product of complex numbers (3 - 2i) and (3 + i4) results in
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A. 2πnj
B. 0
C. $$\frac{{\pi {\text{j}}}}{{2\pi }}$$
D. 2πn
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