3^(1/2)-27^(1/6）+16^(3/4)-2*[8^(-2/3)^(-1)]+2^(1/5)*[a^(-2/5)]^(-1)=?
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3^(1/2)-27^(1/6）+16^(3/4)-2*[8^(-2/3)^(-1)]+2^(1/5)*[a^(-2/5)]^(-1)
=3^(1/2)-3^(1/2）+2^3-2*[2^(-2)^(-1)]+2^(1/5)*[a^(2/5)]
=8-2*[2^2]+2^(1/5)*[a^(2/5)]
=8-2^3+2^(1/5)*[a^(2/5)]
=8-8+2^(1/5)*[a^(2/5)]
=2^(1/5)*[a^(2/5)]
=3^(1/2)-3^(1/2）+2^3-2*[2^(-2)^(-1)]+2^(1/5)*[a^(2/5)]
=8-2*[2^2]+2^(1/5)*[a^(2/5)]
=8-2^3+2^(1/5)*[a^(2/5)]
=8-8+2^(1/5)*[a^(2/5)]
=2^(1/5)*[a^(2/5)]
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