2a+b=-3
2a+21=25
a=2 b=-7
原式=-1的n+1次方 =1 n为奇数时,
=-1,n为偶数时
已知(2a+b)是的3次方=-27,根号2a+21=5,求(3a+b)的n+1次方的值
已知(2a+b)是的3次方=-27,根号2a+21=5,求(3a+b)的n+1次方的值
数学人气:584 ℃时间:2019-08-18 21:12:40
优质解答
我来回答
类似推荐
猜你喜欢
- 1若X>1,Y>0,且满足XY=X的Y次方,X/Y=X的3Y次方,则X+Y等于?
- 2英语翻译
- 3常接双宾语的动词
- 4如果正比例函数y=kx的图象经过点(1,-2),那么k的值等于_.
- 5Did you have a good time last Friday?---Yes,I did.I really____it.A.hated B.enjoy C.forgot D.enjoyed
- 6(2+4+6...+996+998+1000)-(1+3+5+...+995+997+999)加过程
- 7陶渊明的归园田居最能表现诗人摒弃尘俗同,躬耕自食,返归自然愿望 的诗句
- 8The students,( ) at the way the questions were put,didn't know the answers to them.B surprised C
- 9英语作文 my yesterday today and tomorrow
- 10水的密度是多少g/mL,多少kg/L,多少g/L?