Question

If f(x) = ax+b/cx+d, and f(f(x)) = x then
(a) d=a
(b) d=-a
(c) a= b = c= d=1.
(d) a=c=1​

Answer 1

Answer:

Let f(x)=ax+b/cx+d. ... c)a=b= c=d=1 ... this manner.the particle starts at (1,0) .if the particle crosses the positive ... is 3 and the maximum is 6,is a) 3/8 b) 1/5 c