If p and q are the roots of the equation x^2 - x + 3 = 0, then
(2^(p-2)) x (2^(q-2))
=?
F6 Maths 1
2011-11-20 6:38 pm
回答 (1)
2011-11-20 6:49 pm
✔ 最佳答案
(2^(p-2)) x (2^(q-2))= 2^(p - 2 + q - 2)
= 2^(p + q - 4)
= 2^(1 - 4)
= 1/8
收錄日期: 2021-04-26 19:17:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111120000051KK00191