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<a href="http://www.codecogs.com/eqnedit.php?latex=\int_{0}^{\pi /2}\frac{1-sinx}{(1@plus;cosx)\varepsilon ^{x}}dx" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\int_{0}^{\pi /2}\frac{1-sinx}{(1+cosx)\varepsilon ^{x}}dx" title="\int_{0}^{\pi /2}\frac{1-sinx}{(1+cosx)\varepsilon ^{x}}dx" /></a>