The value of \[\int_{0}^{\frac{\pi}{4}} e^{\sec x} \dfrac{\sin\Big( x + \dfrac{\pi}{4}\Big)}{(1 - \sin x) \cos x} dx\]
can be expressed as \[\dfrac{(a + \sqrt{b})e^{\sqrt{c}} - e}{\sqrt{d}}.\]
Find \(\displaystyle{a+b+c+d}.\)
by
Abhishek Singh
