Determine the value of ∫0π/2sinxsinx+cosxdx\int_{0}^{\pi/2} \frac{\sin x}{\sin x + \cos x} dx∫0π/2sinx+cosxsinxdx by applying the property ∫0af(x)dx=∫0af(a−x)dx\int_0^a f(x) dx = \int_0^a f(a-x) dx∫0af(x)dx=∫0af(a−x)dx.
000
111
π/4\pi/4π/4
π/2\pi/2π/2