我会
F（n）=ax^n+by^n
x,y是tt＝pt+q两根
F（n)=pF(n-1)+qF(n-2)
F(3)=pF(2)+qF(1)
F(4)=pF(3)+qF(2)
p=-14
q=38
F(5)=20
若a,b,x,y满足ax+by=3,ax^2+by^2=7,ax^3+by^3=16,ax^4+by^4=42,求ax^5+by^5的值
若a,b,x,y满足ax+by=3,ax^2+by^2=7,ax^3+by^3=16,ax^4+by^4=42,求ax^5+by^5的值
数学人气：729 ℃时间：2020-03-20 16:08:50
优质解答
我来回答
类似推荐
- 实数a,b,x,满足ax+by=3,ax^2+by^2=7,ax^3+by^3=16,ax^4+by^4=42,ax^5+by^5=?
- 若a,b,x,y满足ax+by=3,ax^2+by^2=7,ax^3+by^3=16,ax^4+by^4=42,求ax^5+by^5的值
- ax+bx=3,ax^2+by^2=7,ax^3+by^3=16,ax^4+by^4=42,求ax^5+bx^5.
- ax+bx=3,ax^2+by^2=7,ax^3+by^3=16,ax^4+by^4=42,求ax^5+bx^5.
- 已知：ax+by=3ax*2+by*2=7ax*3+by*3=16ax*4+by*4=42 ax*5+by*5=?
猜你喜欢
- 1宇宙飞船在太空中受平衡力吗?不要局限在太阳系内.
- 2like、love、enjoy有什么区别?
- 3什么易进不易出?What is easy to get into but hard to get out of?
- 4Could you tell me what time （ 括号中应是it is 还是is it?为什么?
- 5求关于清明诗句,诗词 好句 好词
- 6一块布料第一次剪去全长的一半,第二次比第一次剪去全长的6分之1.这块布料还剩的几分之几
- 7Haha.I know a lot about a little bit and a little.
- 8Mike is fine (对划线部分提问) 回答 ____ _____ Mike?
- 9甲,乙两只油桶共有油重40千克,把甲桶油的1/6倒入乙桶后,甲,乙两桶的油重量比是3:5.甲,乙两桶原来各有油多少千克?
- 10问()do you want?答Two cups.括号内填How many 还是How much为什么