A subassembly is composed of two components, components A and B,
which operate in series and have constant failure rates. Find the
MTTF and R(1), the reliability at the end of the first year for the
following configuration: Two identical subassemblies configured as
a standby system with annual component failure rates of 0.08 and
0.12 and standby annual failure rates of 0.01 and 0.04, for
components A and B, respectively. (Hint: A single subassembly
consists of the two components A & B in "series")