计算题,
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计算题,计算题, 计算题,(1/2)^(-2)=2^2=42sqr(2)abs(2sqr(2)-3)=3-2sqr(2)sqr(8)=2sqr(2)3/(2sqr(2))=(3sqr(2))
计算题,
计算题,
计算题,
(1/2)^(-2)=2^2=4
2sqr(2)<3
abs(2sqr(2)-3)=3-2sqr(2)
sqr(8)=2sqr(2)
3/(2sqr(2))=(3sqr(2))/4
=4+3-2sqr(2)-(3sqr(2))/4
=7+(5sqr(2))/4
