Jika diketahui f(x+3) = f(x) + 5, dan f(2) =4, tentukan f(11)...? Buruan ya

jika f(x+3) = f(x) + 5,

misal x+3 = 11,
maka x = 8

f(11) = f(8) + 5

misal x+3 = 8,
maka x = 5

f(8) = f(5) + 5

misal x+3 = 5
maka x = 2

f(5) = f(2) + 5 = 4 + 5 = 9
f(8) = f(5) + 5 = 9 + 5 = 14
f(11) = f(8) + 5 = 14 + 5 = 19

jadi f(11) = 19

semoga jelas dan membantu