please help with the last 2?
回答 (3)
2020-09-16 12:15 am
3.
(f∘f)(x) = (1)/(1/x)
4.
(g∘g)x = (4)(4x-7)-(7)
(f∘f)(x) = (1)/(1/x)
4.
(g∘g)x = (4)(4x-7)-(7)
2020-09-16 1:08 am
the 3 and 4 answers seem to be wrong
2020-09-16 1:02 am
While 老爺子 is correct, they would want you to simplify:
1 / (1/x)
1 * x
x
4(4x - 7) - 7
16x - 28 - 7
16x - 35
1 / (1/x)
1 * x
x
4(4x - 7) - 7
16x - 28 - 7
16x - 35
收錄日期: 2021-05-01 01:00:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200915161043AAWBYkZ