作业帮(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!](/uploads/image/z/1076283-27-3.jpg?t=%281%2F4%29%5E2%C3%B7%28-1%2F2%29%5E3%2B0%C3%B72%2F5-%5B21%2A%283%E5%8F%881%2F7-7%E5%8F%881%2F3%29%2A7%2F22%C3%B73%2F1%2F2%5D%5E2%E6%80%A5%E6%80%A5%E6%80%A5%21)
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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)*7/22÷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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(2-1÷2)×(2-2÷3)×(2-3÷4)×.×(2-2002÷2003)
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1÷(2÷3)÷(3÷4)÷(4÷5)÷.÷(2012÷2013)÷(2013÷2014)
1÷2/1÷3/2÷4/3÷5/4÷……÷2006/2005
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1÷(2÷3)÷(4÷5)÷……÷(19÷20)等于多少?
4^2÷(-1/4)-5^4÷(-5)^3,
1/2÷3/2÷4/3÷5/4÷……÷2012/2013
数学巧算1÷(3÷4)÷(2÷3)1213
计算:1÷(1-1/2)÷(1-1/3)÷(1-1/4)……÷(1-1/2012)
数学题1÷67-2÷67+3÷67-4÷67+...+2009÷67-2010÷67=?