3-√3/√3=3
(10√3+√108-3√27)*(√147)^-1=
=(10√3+6√3-9√3)* 1/7√3=
=(10+6-9)√3*1/7√3=
=7√3*1/7√3=1
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3-√3/√3=3
(10√3+√108-3√27)*(√147)^-1=
=(10√3+6√3-9√3)* 1/7√3=
=(10+6-9)√3*1/7√3=
=7√3*1/7√3=1