a, 8102
= (84)25.82
= \(\overline{...6}\)25.4
= \(\overline{..4}\)
b, 20171991
= (20174)497.20173
= \(\overline{..1}\)497.\(\overline{..9}\)
= \(\overline{...9}\)
19781996
= (19784)499
= \(\overline{..6}\)
20222025
= (20224)506.2022
= \(\overline{...6}\)506.2022
= \(\overline{..2}\)
20232016
= (20234)504
= \(\overline{...1}\)504
= \(\overline{..1}\)
20242026
= (20242)1013
= \(\overline{...6}\)1013
= \(\overline{...6}\)
20272025
= (20274)506.2027
= \(\overline{..1}\)506.2027
= \(\overline{..7}\)