Question

If (f)x = x2 - 4x +1.find f(A) , when A= [2/3 3/2].
​

Answer 1

Answer:

-11/9 and -19/4

Step-by-step explanation:

(f)x = x2 - 4x + 1

A= 2/3

f(A) = (2/3)2 - 4(2/3) + 1

     =  4/9 - 8/3 + 1

     =   4/9 - 24/9 + 9/9

      = -11/9

A = 3/2

f(A) = (3/2)2- 4(3/2) + 1

      =  9/4   -  12/2 + 1

      =  9/4 - 6 + 1

       = 9/4 -  24/4 + 4/4

     =  -19/4

hope it helps..