### Home > APCALC > Chapter 1 > Lesson 1.4.2 > Problem1-153

1-153.

For $f(x) = 3x \cos(x)$, approximate the area under the curve for $0≤x≤\frac { \pi } { 2 }$ using two different methods. If the actual area is approximately $1.712$ square units, which of your methods was most accurate? Analyze why that particular method was more accurate. Homework Help ✎

Answers vary, but be sure to take into account the width of the rectangles and/or trapezoids.