(1/4)^2÷(-1/2)^3+0÷2/5-[21*(3又1/7-7又1/3)*7/22÷3/1/2]^2急急急!
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(1/4)^2÷(-1/2)^3+0÷2/5-[21*(3又1/7-7又1/3)*7/22÷3/1/2]^2急急急!(1/4)^2÷(-1/2)^3+0÷2/5-[21*(3又1/7-7又1/3)*7
(1/4)^2÷(-1/2)^3+0÷2/5-[21*(3又1/7-7又1/3)*7/22÷3/1/2]^2急急急!
(1/4)^2÷(-1/2)^3+0÷2/5-[21*(3又1/7-7又1/3)*7/22÷3/1/2]^2
急急急!
(1/4)^2÷(-1/2)^3+0÷2/5-[21*(3又1/7-7又1/3)*7/22÷3/1/2]^2急急急!
(1/4)^2÷(-1/2)^3+0÷2/5-[21*(3又1/7-7又1/3)*7/22÷3又1/2]^2
=1/16÷（-1/8）+0-[21*(22/7-22/3)*7/22÷7/2]^2
=-1/2-[（21÷7/2）*(1/7-1/3)*22*7/22]^2
=-1/2-[6*(1/7-1/3)*7]^2
=-1/2-[(6*7*1/7-6/7*1/3)]^2
=-1/2-（6-14）^2
=-1/2-（-8）^2
=-1/2-64
=-64又1/2
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