a,负2a的平方,4a的3次方,负8a的4次方,16a的5次方,……按此规律,第n个单项式是多a,负2a的平方,4a的3次方,负8a的4次方,16a的5次方,……按此规律,第n个单项式是多少?(n是正整数)
showthatFibonaccinumberssatisfytherecurrencerelationfn=5f(n-4)+3f(n-5)forn=5,6,7...,togetherwiththeinitialconditionsf0=0,f1=1,f2=1,f3=2,f4=3.usethisrecurrencerelationtoshowthatf5nisdivisibleby5,forn=1,2,3...注:fibonacci
把这四组字母分别组成一个词.1.n,p,e,h,o2.o,t,k,p,e,c3.i,u,e,s,d,l,i,c,o4.e,p,f,r,e,r急用