### Home > CALC > Chapter Ch2 > Lesson 2.1.2 > Problem 2-28

2-28.

Notice the symmetry about the *y*-axis. If we evaluate the trapezoidal sum on one side of the *y*-axis, can we determine the trapezoidal sum on the other side of the *y*-axis?

2-28.

Notice the symmetry about the *y*-axis. If we evaluate the trapezoidal sum on one side of the *y*-axis, can we determine the trapezoidal sum on the other side of the *y*-axis?