Mi az f (x) = int x - 3, ha f (2) = 3?

Mi az f (x) = int x - 3, ha f (2) = 3?
Anonim

Válasz:

#f (x) = (x ^ 2) / 2-3x + 7 #

Magyarázat:

#f (x) = intx-3 dx #

# = (X ^ 2) / 2-3x + c #

Bányászat 2-ben, #f (2) = ((2) ^ 2) / 2-3 (2) + c = 2-6 + c = -4 + c #

Mivel #f (2) = 3 #, # -4 + c = 3 #

# C = 7 #

#:. f (x) = (x ^ 2) / 2-3x + 7 #