מהו f (x) = int x - 3 אם f (2) = 3?

מהו f (x) = int x - 3 אם f (2) = 3?
Anonim

תשובה:

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

הסבר:

#f (x) = intx-3 dx #

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

Subbing ב 2, (2) + 2 (2) ^ 2 / 2-3 (2) + c = 2-6 + c = -4 + c #

מאז #f (2) = 3 #, # 4 + c = 3 #

# c = 7 #

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