Question
If $ I_1 = \int_{0}^{\frac{\pi}{2}} x \cdot \sin x \, dx $ and $ I_2 = \int_{0}^{\frac{\pi}{2}} x \cdot \cos x \, dx $, then which one of the following is true?
If $ I_1 = \int_{0}^{\frac{\pi}{2}} x \cdot \sin x \, dx $ and $ I_2 = \int_{0}^{\frac{\pi}{2}} x \cdot \cos x \, dx $, then which one of the following is true?