engineering recuitment GATE ECE 2023-24 Test Series Engineering Mathematics Complex Variables Cauchy's Integral Theorem
If the following integral is evaluated using Cauchy’s Integral formula
\(\underset{\left| z \right|=1}{\overset{{}}{\mathop \oint }}\,\frac{{{e}^{kz}}}{z}dz\) where k is a real constant.
Then the value of integral
\(\underset{0}{\overset{2\pi }{\mathop \oint }}\,{{e}^{k\cos \theta }}\sin \left( k\sin \theta \right)d\theta =\)Enter numerical value using the virtual keypad. Round off where necessary.