ardg 0 + ardg 1 + arcsin 0 + arcsin 1 + arcsin(sqrt(2)/2) + arccos 0 + arccos 1 + arccos(sqrt(2)/2)

1. ardg 0 = 0, ardg 1 = pi/4, arcsin 0 = 0, arcsin 1 = pi/2, arcsin(sqrt(2)/2) = pi/4, arccos 0 = pi/2, arccos 1 = 0, arccos(sqrt(2)/2) = pi/4.

2. Summing the values: 0 + pi/4 + 0 + pi/2 + pi/4 + pi/2 + 0 + pi/4.

3. Total sum: pi/4 + pi/2 + pi/4 + pi/2 + pi/4 = 7*pi/4.