Math problem.
回答 (3)
2008-03-19 6:12 pm
✔ 最佳答案
(x5n/4)2-2(x2)2n = (x10n/16) - 2(x4n)
= ((x2n.x2n.x2n.x2n.x2n)/16) - 2(x2n.x2n)
= 64 - 32
= 32
2008-03-19 6:10 pm
the value = x^5n/2 - 2.x^4n
=x^2n+1/2n -2.16
= 2+2^1/2 - 32
=x^2n+1/2n -2.16
= 2+2^1/2 - 32
2008-03-19 6:04 pm
(x5n/4)2-2(x2)2n
=X^10n/4-2X^4n
=((X^2n)^5)/4-2(X^2n)^2
=(4^5)/4-2(4)^2
=256-32
=224
=X^10n/4-2X^4n
=((X^2n)^5)/4-2(X^2n)^2
=(4^5)/4-2(4)^2
=256-32
=224
收錄日期: 2021-04-13 15:18:23
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080319000051KK00527