The Rectangles in the Following Graph to Approximate the Area $y = \cos x , y = 0 , x = - \frac { \pi } { 2 }$

Multiple Choice

the rectangles in the following graph to approximate the area of the region bounded by $y = \cos x , y = 0 , x = - \frac { \pi } { 2 }$ , and $x = \frac { \pi } { 2 }$

A) $3.9082$
B) $2.6055$
C) $1.9541$
D) $1.4656$
E) $0.9770$