قيمة التكامل المحدود ${\int }_0^{\pi /2}\frac{\sin x}{\sin x+\cos x}dx$ تساوي:

Practise more التكامل غير المحدود والمحدود (Indefinite and Definite Integration).

Free questions with an explanation for every one, and full timed Tawjihi (General Secondary) mock tests.