Find all of the points of the form (x, −x) which are 7 units from the origin.?
回答 (2)
2017-01-19 11:23 am
(7/sqrt2,-7/sqrt2)
or
(-7/sqrt2,7/sqrt2)
or
(-7/sqrt2,7/sqrt2)
2017-01-19 11:23 am
What do you think?
收錄日期: 2021-05-01 21:27:48
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170119032147AAUZiNB