Let $A_1$ be the area of the region bounded by the curves $y=\sin x, y=\cos x$ and $y$-axis in the first quadrant. Also, let $A_2$ be the area of the region bounded by the curves $\mathrm{y}=\sin \mathrm{x}, \mathrm{y}=\cos \mathrm{x}, \mathrm{x}$ - axis and $\mathrm{x}=\frac{\pi}{2}$ in the first quadrant. Then,