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GATE ECE 2006
MCQ (Single Correct Answer)
+1
-0.3
The value of the counter integral $$$\int\limits_{\left| {z - j} \right| = 2} {{1 \over {{z^2} + 4}}\,} dz\,\,in\,the\,positive\,sense\,is$$$
A
$${{j\pi } \over 2}$$
B
$${{ - \pi } \over 2}$$
C
$${{ - j\pi } \over 2}$$
D
$${\pi \over 2}$$
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