标题:
[求助]一题
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作者:
wujie_rens
时间:
2005-12-31 07:33
标题:
[求助]一题
x^2+1/x^2=4, 问x^4+1/x^4=?
请问该怎么做?谢谢!
作者:
pipa66
时间:
2005-12-31 07:51
(x^2+1/x^2)^2=16, you should get the answer afterwards.
作者:
wujie_rens
时间:
2006-1-1 20:50
thanks !!!!!!!
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