1.(-1/3)^-2+(√3-1)^2-√27-(√2-1)^0 2.(4√3-2√12+3√18)÷(-2√1/3)
问题描述:
1.(-1/3)^-2+(√3-1)^2-√27-(√2-1)^0 2.(4√3-2√12+3√18)÷(-2√1/3)
答
(-1/3)^-2+(√3-1)^2-√27-(√2-1)^0
=9+3-2√3+1-3√3-1
=12-5√3
(4√3-2√12+3√18)÷(-2√1/3)
=(4√3-4√3+9√2)÷(-2/3√3)
=9√2÷-2/3√3
=27/2√2/3
=9/2√6
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