8. If for a real number $y , [ y ]$ is the greatest integer less than or equal to $y$, then the value of the integral $\int \sqcap / 23 \sqcap / 2 [ 2 \sin x . d x ]$ is: (A) $- \pi$ (B) 0 (C) $- \pi / 2$ (D) $\pi / 2$
8. If for a real number $y , [ y ]$ is the greatest integer less than or equal to $y$, then the value of the integral $\int \sqcap / 23 \sqcap / 2 [ 2 \sin x . d x ]$ is:\\
(A) $- \pi$\\
(B) 0\\
(C) $- \pi / 2$\\
(D) $\pi / 2$\\