f（x)是定义域R上的奇函数,f（x+3)=-1/f(x) 当x属于[-3,-2]时f(x)=2x,则f(113.5)的值为

f(x+3)=-1/f(x)所以-1/f(x+3)=f(x)f(x+6)=f[(x+3)+3]=-1/f(x+3)=f(x)即f(x+6)=f(x)f(113.5)=f(107.5+6)=f(107.5)以此类推f(113.5)=f(107.5)=f(101.5)=……=f(5.5)=f(2.5+3)=-1/f(2.5)-3