Select Code to Download

ok 12 - expr -a+b
ok 13 - expr 1/a
...
ok 16 - expr a.(1/b)
ok 17 - expr (1/a).b
ok 18 - expr a^2

ok 12 - expr -a+b
ok 13 - expr 1/a
...
ok 16 - expr a.(1/b)
ok 17 - expr (1/a).b
ok 18 - expr a^2