(5的2分之1次方-3的2分之1次方)的3分之1次方(5的2分之1次方+3的2分之1次方)的3分之1次方
=[5^(1/2)-3^(1/2)]^(1/3)*[5^(1/2)+3^(1/2)]^(1/3)
={[5^(1/2)-3^(1/2)]*[5^(1/2)+3^(1/2)]}^(1/3)
={5-3}^(1/3)
=2^(1/3)
≈1.2599
(5的2分之1次方-3的2分之1次方)的3分之1次方(5的2分之1次方+3的2分之1次方)的3分之1次方
=[5^(1/2)-3^(1/2)]^(1/3)*[5^(1/2)+3^(1/2)]^(1/3)
={[5^(1/2)-3^(1/2)]*[5^(1/2)+3^(1/2)]}^(1/3)
={5-3}^(1/3)
=2^(1/3)
≈1.2599