Simplify the following.
please show all the clear steps.
1) (x^1/2 divide by x^1/3)times x^1/4
2) (x^3n over y^5)^1/2 times (x^n over y^3)^1/2
---------------------------------------------------------------------
Describe the relation in words.
3) (1,3),(2,5),(3,7),(4,9),(5,11)
Thanks
Rational Exponents & Relations
2012-12-17 12:02 am
回答 (1)
2012-12-17 12:28 am
✔ 最佳答案
1){x^(1/2)/[x^(1/3)]}x^(1/4)
= x^(1/2 - 1/3 + 1/4)
= x^[(6 - 4 + 3)/12]
= x^(5/12)
2)
{[x^(3n)/(y^5)]^(1/2)}[(x^n)/(y^3)]^(1/2)
= x^(3n/2 + n/2) / y^(5/2 + 3/2)
= x^(2n)/(y^4)
3)
(1 , 3) , (2 , 5) , (3 , 7) , (4 , 9) , (5 , 11)
i.e. (n , 2n + 1) where n = 1, 2, 3, 4, 5
i.e. They are collinear on y = 2x + 1.
參考: Myself
收錄日期: 2021-04-13 19:11:38
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20121216000051KK00195