找规律,在括号里用代数式表示第N个数1.1,5,9,13,17,21,...,( )2.1,四分之三,九分之五,十六分之七,二十五分之九,...,( )英语:1.根据汉语提示,完成句子Please ( ) ( ) 提示:尽快回信【只有两个空】2.交际对话 根据问句写答语,根据答语写问句①Do you sleep late?答:② 问:Mary has a shower at 7:00 in the morning.
问题描述:
找规律,在括号里用代数式表示第N个数
1.1,5,9,13,17,21,...,( )
2.1,四分之三,九分之五,十六分之七,二十五分之九,...,( )
英语:
1.根据汉语提示,完成句子
Please ( ) ( ) 提示:尽快回信【只有两个空】
2.交际对话 根据问句写答语,根据答语写问句
①Do you sleep late?
答:
② 问:
Mary has a shower at 7:00 in the morning.
答
no
答
4n-3
(2n+1)/n^2
sit down
No
When does Mary have a shower?
答
1.每个数都差4
第n个数=4n-3
2.分母是平方,分子都差2
第n个数=2n-1/n^2
1.please write soon.
2.no,I don't.
what did Mary do in the morning?