Question

if f(x)=2{x}, if x€[2, infinity), then the value of f(3)=? (where {.} denotes FPF)​

Answer 1

Answer:

Step-by-step explanation:

ANSWER

(x−2)(x−{x})={x}−1⇒x  

2

−2x+1=(x−1){x}

⇒x=1 or x−1={x}⇒x=1 or[x]=1

⇒x∈[1,2)which satisfies given eqution so infinitely many values