Question

4. H A = [1 2]and f(x) = x² – 2x – 3 then find f(A).​

Answer 1

Answer:

f[A]= 117

Step-by-step explanation:

A= [12]

f(x) = x² – 2x – 3

f[A]= A^2-2A-3

f[12]= 12^2-2*12-3

f[12]= 144-24-3

f[12]= 117